<![CDATA[United Express Distribution: ]]> https://unitedexpressdist.3dcartstores.com Wed, 7 Oct 2026 00:00:00 EST en-us <![CDATA[Engine GY6 50cc, Short Case]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-50cc-Short-Case_p_711.html Wed, 7 Oct 2026 00:00:00 EST Brand NEW GY6 50cc 4 Stroke Short Case Engine 1P39QMB Kit for most China Made Gas Scooters This is a Short Case Engine, so ensure you are ordering the correct one. Ready to ship from our warehouse in Georgia, USA. Most customers receive within one we...[Read More]
Our Price: $359.97 [Add to Cart]


]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-50cc-Short-Case_p_711.html Brand NEW GY6 50cc 4 Stroke Short Case Engine 1P39QMB Kit for most China Made Gas Scooters This is a Short Case Engine, so ensure you are ordering the correct one. Ready to ship from our warehouse in Georgia, USA. Most customers receive within one we...[Read More]
Our Price: $359.97 [Add to Cart]


]]> Brand NEW GY6 50cc 4 Stroke Short Case Engine 1P39QMB Kit for most China Made Gas Scooters

This is a Short Case Engine, so ensure you are ordering the correct one.

Ready to ship from our warehouse in Georgia, USA. Most customers receive within one week.

Fits:

  • 50cc GY6 Single Shock Scooters
  • 50cc China made Single Shock Scooters

It fits for most of China Made scooter such as Peace, Roketa, Taotao and many other Chinese brand scooters. (Make sure you take note of the length of the crankcase for your scooter.)

Package includes:

  • 1× engine as pictures show

Features

  • CVT: CVT consist mainly of 2 transmission pulleys and 2 transmission belts. It's compact, simple design offers seamless shifting between an unlimited amount of varying gear ratios, allowing a smooth rate of acceleration.
  • Crank Shaft: The engine is low speed with high torque and has large diameter bearings for crankshaft connecting rod, increasing the reliability of the bearings.
  • Forced Air-cooled Engine: There are metal fins covering the outside of the cylinders and the heat generated by the engine is released directly into the air when the cooling fan blows air over fins. It has the advantages of simple structure, light weight, wide adaptability to climate change, rapid start up and no need of radiator.
  • High-flow Oil Pump: Reduces the wear of friction pairs and prolongs the engine service life.
  • Lubricating Oil Strainer: Helps removing solid contamination from lubricating oil, largely reducing the wear of friction pairs and prolonging the engine service life.
  • Aluminum Cylinder Head & Body: Improves the heat dissipation capability, cuts the weight and increases the torque of the engine.

Specifications:

  • Engine Type Single Cylinder, 4-Stroke, OHC, 2-Valve
  • Horsepower 2.82HP/6500Rpm (2.1KW/6500Rpm)
  • Starter Electric/Kick starter
  • Lubrication Pressure/splash
  • Cooling System Air Cooled
  • Fuel Supply Carbureted
  • Max. Torque 3.1N.m/5500rpm
  • Transmission CVT
  • Min. Stable Idle Speed 1450-1750r/min
  • Clutch Shoe-type Automatic Centrifugal Dry Clutch
  • Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h)
  • Cylinder Diameter 1.54" (39mm)
  • Carburetor Model PD18J
  • Piston Stroke 1.63" (41.5mm)
  • Carburetor Type Horizontal Vacuum Carburetor
  • Displacement: 50cc (49.6cc)
  • Bore & Stroke 1.54" x 1.63 " (39mm x 41.5mm)
  • Ignition Method CDI
  • Spark Plug Model A7TC
  • Cylinder Working Volume 0.01 Gallon (49.5ml)
  • Fuel Type #87
  • Compression Ratio 10.5:1
  • Lubrication Model SF15W/40-SE
  • Ignition Type CFW
  • Lubrication Capacity 0.20 Gallon (900ml)
]]> <![CDATA[Engine - 125cc Automatic w/ Reverse 4-stroke Electric Start ATV GO Karts 1P52FMH]]> https://unitedexpressdist.3dcartstores.com/Engine--125cc-Automatic-w-Reverse-4-stroke-Electric-Start-ATV-GO-Karts-1P52FMH_p_720.html Wed, 7 Oct 2026 00:00:00 EST Engine - 110cc Automatic 52FM ATV (Automatic Transmission With Reverse)Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc since the mounting holes are sameWill not fit engine with starter bottom mounted since the mounting holes different.Conditi...[Read More]
Our Price: $296.95 On Sale [Add to Cart]


]]> https://unitedexpressdist.3dcartstores.com/Engine--125cc-Automatic-w-Reverse-4-stroke-Electric-Start-ATV-GO-Karts-1P52FMH_p_720.html Engine - 110cc Automatic 52FM ATV (Automatic Transmission With Reverse)Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc since the mounting holes are sameWill not fit engine with starter bottom mounted since the mounting holes different.Conditi...[Read More]
Our Price: $296.95 On Sale [Add to Cart]


]]> Engine - 110cc Automatic 52FM ATV (Automatic Transmission With Reverse)

Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc since the mounting holes are same
Will not fit engine with starter bottom mounted since the mounting holes different.

Condition: Brand New
Engine Type: Single Cylinder, 4-Stroke, 2-Valve, Air Cooled
Horsepower(KW/Rpm): 5.7/7500±500
Max. Torque(N?m/Rpm): 8.0/5500±500
Min. Fuel Consumption(g/Kw.h): 367
Bore*Stroke: 52mmx49.5mm
Displacement(cc): 120
Compression ratio: 9.0:1
Ignition: CDI
Lubrication: Pressure/splash
Starter:Electric Starter
Transmission:Auto Transmission with Reverse
Carburetor Model: PZ22
Oil capacity(ml):900

Wiring:

  • Black/Red = Ignition
  • Blue/White = Trigger
  • Yellow/Pink = 12v battery or lighting
  • Green = Ground
  • Plug wire = Shift Cable

Fits the following brands: Kinroad, Roketa, Sunl, BMS, BMX, Baja, JCL, Taotao, Peace, Jonway, Kazuma, KMD, NST, Redcat, Roketa,Tank, Buyang, Coolsport, AIM-EX etc.

It is good idea if you like to either replace your old engine or upgrade your ATV or Go kart to be faster or more powerful

]]> <![CDATA[Lifan 125cc 4-Stroke Complete Racing Engine Motor Assembly, Single Cylinder with Air-Cooled Compatible for 125cc 4-speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMI, Honda Bikes - (Silver)]]> https://unitedexpressdist.3dcartstores.com/Lifan-125cc-4-Stroke-Complete-Racing-Engine-Motor-Assembly-Single-Cylinder-with-Air-Cooled-Compatible-for-125cc-4-speed-Manual-Clutch-Pit-Dirt-Bike-Coolster-CRF-1P54FMI-Honda-Bikes--Silver_p_911.html Wed, 7 Oct 2026 00:00:00 EST 125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMIThe Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides high-performance capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 ...[Read More]
Our Price: $269.97 [Add to Cart]


]]> https://unitedexpressdist.3dcartstores.com/Lifan-125cc-4-Stroke-Complete-Racing-Engine-Motor-Assembly-Single-Cylinder-with-Air-Cooled-Compatible-for-125cc-4-speed-Manual-Clutch-Pit-Dirt-Bike-Coolster-CRF-1P54FMI-Honda-Bikes--Silver_p_911.html 125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMIThe Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides high-performance capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 ...[Read More]
Our Price: $269.97 [Add to Cart]


]]> 125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMI
The Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides high-performance capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 down and 3 up gear ratios, it's designed for racing enthusiasts seeking precision and power. With its durable 4-stroke single-cylinder OHC air-cooled design, this engine delivers reliable performance across various terrains. Equipped with a robust 8.72 HP output at 7,500 RPM and a maximum torque of 8.0N.m at 5,500 RPM, it makes certain exhilarating acceleration and control. Compatible with Honda bikes and boasting a three-disc crank-mounted heavy-duty manual clutch, this engine provides durability and endurance. Whether navigating dirt tracks or conquering racing circuits.
  • High Performance: The Lifan 1P54FMI-125cc engine is celebrated for its exceptional performance, delivering a potent 8.72 HP at 7,500 RPM. This power output positions it as a top choice for both racing enthusiasts and off-road adventurers craving thrilling experiences. With its dependable performance and impressive torque, this engine provides an exhilarating ride across any terrain or competition, providing an adrenaline-fueled adventure every time.
  • Smooth Shifting: The manual-clutch International shift configuration of the Lifan 1P54FMI-125cc engine, featuring 1 down and 3 up shifts, provides smooth and precise gear changes. This setup enhances control and acceleration, allowing riders to adapt effortlessly to different terrains and riding conditions. Whether navigating challenging trails or accelerating on straightaways, this transmission system ensures a seamless and responsive riding experience.
  • Reliable Ignition: The Lifan 1P54FMI-125cc engine is equipped with a dependable CDI ignition system, providing consistent spark delivery. This reliability ensures optimal performance even in the most demanding conditions, where accurate ignition timing is crucial. Whether navigating rough terrain or pushing the limits on the race track, riders can believe in the engine's ignition system to deliver reliable power and performance throughout their adventures.
  • Durable Construction: The Lifan 1P54FMI-125cc engine is crafted with durability in mind, boasting a sturdy 4-stroke single-cylinder OHC air-cooled design. Its robust construction, including a large domed combustion chamber, ensures longevity and endurance in various riding conditions. Additionally, the inclusion of a heavy-duty manual clutch further enhances durability, making this engine a reliable choice for enduring performance on and off the track.
  • Ease of Maintenance: The Lifan 1P54FMI-125cc engine prioritizes ease of maintenance, featuring readily accessible components such as the kick starter and a range of carburetor options including Walbro, Mikuni, or Sheng Wey. This accessibility streamlines maintenance tasks and tuning processes, ensuring minimal downtime and optimal engine performance. By simplifying upkeep procedures, riders can effortlessly optimize engine longevity and reliability.
Specs:
  • Engine Model: Lifan 1P54FMI-125cc
  • Type: 4-stroke single-cylinder OHC air-cooled
  • Bore & Stroke: 54 X 54mm
  • Compression ratio: 9.47:1
  • Displacement: 123.7cc
  • Max. HP: 8.72 HP @ 7,500 RPM
  • Max. Torque: 8.0N.m @ 5,500 RPM
  • Carburetor: Walbro, Mikuni, or Sheng Wey
  • Idle: 1,500 RPM
  • Starter: KickStart
  • Spark plug: A7TC or NGK C6HSA
  • Plug Gap: .28 or 0.6-0.8mm
  • Ignition system: CDI (Capacitive Discharge Ignition)
  • Lubrication: Pressure / Splash
  • Oil capacity: 0.9L (15w/40-SE)
  • Measurements: 18 1/4" x 11" x 11"
  • Weight: 44.1/4 lbs (Engine only) Shipped 52lbs
  • Clutch: manual clutch-wet
  • Gears: 4 speed (primary reduction: 3.722 manual, 4.059 Auto)
  • Gear Ratios: 2.833/1.706/1.238/0.958
  • Magneto: Permanent magnetic
  • Voltage: 12 Volt
  • Sprocket: 428 15T 20mm
This is a new race high-performance engine, Manual-clutch International shift 1 down 3 up w/Clutch, 4 Stroke 4 Speed Complete Racing Engine for Honda Bikes.

This engine has a three-disc crank-mounted heavy-duty manual clutch. The head has a large domed combustion chamber with large valves. The intake valve is 27mm exhaust valve is 23mm.

This engine must be neutral to start with a Kickstarter.

Note: Check pictures and measurements to verify if this product is the correct application for your model.

Wiring:
wiring diagram
]]> <![CDATA[Engine GY6-A 150cc Long Case Scooter]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-A-150cc-Long-Case-Scooter_p_1757.html Wed, 7 Oct 2026 00:00:00 EST Engine GY6-A Long Case Scooter Moped Engine, 4-Stroke, AUTO (CVT) clutchEngine comes complete, ready to bolt on. Kickstart lever is included. This complete engine comes with a carburetor, CDI, Starter Solenoid, Coil.Compatible with both 125cc and 150...[Read More]
Our Price: $449.97 [Add to Cart]


]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-A-150cc-Long-Case-Scooter_p_1757.html Engine GY6-A Long Case Scooter Moped Engine, 4-Stroke, AUTO (CVT) clutchEngine comes complete, ready to bolt on. Kickstart lever is included. This complete engine comes with a carburetor, CDI, Starter Solenoid, Coil.Compatible with both 125cc and 150...[Read More]
Our Price: $449.97 [Add to Cart]


]]>
  • Engine GY6-A Long Case Scooter Moped Engine, 4-Stroke, AUTO (CVT) clutch
  • Engine comes complete, ready to bolt on. Kickstart lever is included. This complete engine comes with a carburetor, CDI, Starter Solenoid, Coil.
  • Compatible with both 125cc and 150cc engine size scooters and vehicles.
  • Specification: Style: Long Case; Engine Type: GY6-A Single Cylinder 4-Stroke; Cooling: Air Cooled; Displacement: 149.6cc; Starting: Electric/kick
  • This scooter engine is used in a wide variety of applications, including full-size street legal scooters dirt bikes.
    • Use Belt 842-20-30 Gates Powerlink Belt or Standard Belt
    ]]>         <![CDATA[Engine GY6-A 150cc Go Kart, with built in Reverse]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-A-150cc-Go-Kart-with-built-in-Reverse_p_1775.html Wed, 7 Oct 2026 00:00:00 EST Brand new GY6-A High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear is built-in, NOT outer reverse box. SPECS: Type: GY6-A,...[Read More]
    Our Price: $599.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Engine-GY6-A-150cc-Go-Kart-with-built-in-Reverse_p_1775.html Brand new GY6-A High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear is built-in, NOT outer reverse box. SPECS: Type: GY6-A,...[Read More]
    Our Price: $599.97 [Add to Cart]


    ]]>     Brand new GY6-A High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear is built-in, NOT outer reverse box.

    SPECS:

    Type: GY6-A, 1-cylinder, horizontal, 4-stroke, air-cooled by forced
    Bore x Stroke: 57.4mm x 57.8mm
    Displacement: 149.6ml
    Max. Power & Corresponding Speed: 7.5KW/7500rpm
    Max. Torque & Corresponding Speed: 10.3N.m/6500rpm
    Min. Fuel Consumption: =389g/KW.h
    Pollutant Index: =4.0% (CO), =1000ppm (HC)
    Clutch Type: automatic centrifugal
    Start Mode: electric/kick
    Gearshift Mode: step less

    • 150cc Short Case GY6-A Engine, use 743 Belt
    • Mounting Hole Spacing A: 11.5"
    • Mounting Hole Spacing B: 2.4" X 3.8"
    • Mounting Hole Spacing C: 4.9" X 6.5"

    This engine is used under many names including, Kazuma, Redcat, Roketa, Terminator, Lynx, Tank and many others. The main engine used on these are the GY6 4-stroke engines.

    ]]>         <![CDATA[125cc 4-Stroke Semi Auto 3+1 Reverse Engine Motor 50 90 110 125 Go Kart ATV]]> https://unitedexpressdist.3dcartstores.com/125cc-4-Stroke-Semi-Auto-31-Reverse-Engine-Motor-50-90-110-125-Go-Kart-ATV_p_2194.html Wed, 7 Oct 2026 00:00:00 EST 125CC 4 Stroke Auto w/Reverse Engine Motor for 70cc 90cc 110cc Go Kart ATV Brand New High Quality Engine, 4 Stroke, Automatic Transmission with Reverse, electric start. Fits most China made 125cc ATVs and Go Karts. Includes: Engine Assembly with Star...[Read More]
    Our Price: $280.00 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/125cc-4-Stroke-Semi-Auto-31-Reverse-Engine-Motor-50-90-110-125-Go-Kart-ATV_p_2194.html 125CC 4 Stroke Auto w/Reverse Engine Motor for 70cc 90cc 110cc Go Kart ATV Brand New High Quality Engine, 4 Stroke, Automatic Transmission with Reverse, electric start. Fits most China made 125cc ATVs and Go Karts. Includes: Engine Assembly with Star...[Read More]
    Our Price: $280.00 [Add to Cart]


    ]]>     125CC 4 Stroke Auto w/Reverse Engine Motor for 70cc 90cc 110cc Go Kart ATV

    Brand New High Quality Engine, 4 Stroke, Automatic Transmission with Reverse, electric start.
    Fits most China made 125cc ATVs and Go Karts.

    Includes:

    • Engine Assembly with Starter Motor and Stator as pictured
    • Intake Manifold Pipe
    • Spark Plug.

    DOES NOT come with Carburetor, Battery, CDI, Voltage Regulator and Ignition Coil.

    Compatible Models: Coolster, Taotao, Roketa, Kazuma, Terminator, Lynx, Redcat, Tank and more.

    NOTE: Please check the images and physical size to ensure you order the correct Engine.

    Specifications:

    • Sprocket: 14T 428 17mm
    • Ignition Method CDI
    • Engine Type Single Cylinder, 4-Stroke, 2-Valve
    • Lubrication Pressure/splash
    • Cooling System Air Cooled
    • Fuel Supply Carburetor Atomization
    • Horsepower 7.64HP/7000-8000Rpm (5.7KW/7000-8000Rpm)
    • Starter Electric Starter
    • Max. Torque 8.0N.m/5000-6000rpm
    • Transmission: Semi Automatic (3 forward,1 reverse)
    • Min. Stable Idle Speed 1350-1650r/min
    • Clutch Automatic Multi-plate Wet Clutch
    • Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h)
    • Cylinder Diameter 2.13" (54mm)
    • Carburetor Model PZ22
    • Piston Stroke 1.95" (49.5mm)
    • Carburetor Type Plunger type carburetor
    • Bore & Stroke 2.13" x 1.95" (54mm x 49.5mm)
    • Spark Plug Model A7TC
    • Cylinder Working Volume 0.03 Gallon (120ml)
    • Fuel No. >= 87#
    • Compression Ratio 9.0:1
    • Lubrication Model SF15W/40-SE
    • Ignition Type CFW
    • Lubrication Capacity 0.20 Gallon (900ml)
    • Model: 154FMI
    Wiring:
    • yellow lines: 12v battery or lighting
    • red/black line: firing
    • blue/white line: trigger
    • green line: ground
    ]]>         <![CDATA[Engine GY6 80cc - Short Case with Long Shaft]]> https://unitedexpressdist.3dcartstores.com/Engine-GY6-80cc--Short-Case-with-Long-Shaft_p_2314.html Wed, 7 Oct 2026 00:00:00 EST New 80cc Big Bore Short Case Engine for GY6 Scooter Mopeds This is a Short Case Engine, so ensure you are ordering the correct one. Ready to ship from our warehouse in Georgia, USA. Most customers receive within one week. Fits: 50cc GY6 Single Shoc...[Read More]
    Our Price: $349.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Engine-GY6-80cc--Short-Case-with-Long-Shaft_p_2314.html New 80cc Big Bore Short Case Engine for GY6 Scooter Mopeds This is a Short Case Engine, so ensure you are ordering the correct one. Ready to ship from our warehouse in Georgia, USA. Most customers receive within one week. Fits: 50cc GY6 Single Shoc...[Read More]
    Our Price: $349.97 [Add to Cart]


    ]]>

    New 80cc Big Bore Short Case Engine for GY6 Scooter Mopeds

    This is a Short Case Engine, so ensure you are ordering the correct one.

    Ready to ship from our warehouse in Georgia, USA. Most customers receive within one week.

    Fits:

    • 50cc GY6 Single Shock Scooters
    • 50cc China made Single Shock Scooters

    It fits for most of China Made scooter such as Peace, Roketa, Taotao and many other Chinese brand scooters. (Make sure you take note of the length of the crankcase for your scooter.)

    Engine is Shipped without oil. DO NOT START ENGINE WITHOUT FILLING WITH OIL

    Package includes:

    • 1× engine as pictures show

    Features

    • CVT: CVT consist mainly of 2 transmission pulleys and 2 transmission belts. It's compact, simple design offers seamless shifting between an unlimited amount of varying gear ratios, allowing a smooth rate of acceleration.
    • Crank Shaft: The engine is low speed with high torque and has large diameter bearings for crankshaft connecting rod, increasing the reliability of the bearings.
    • Forced Air-cooled Engine: There are metal fins covering the outside of the cylinders and the heat generated by the engine is released directly into the air when the cooling fan blows air over fins. It has the advantages of simple structure, light weight, wide adaptability to climate change, rapid start up and no need of radiator.
    • High-flow Oil Pump: Reduces the wear of friction pairs and prolongs the engine service life.
    • Lubricating Oil Strainer: Helps removing solid contamination from lubricating oil, largely reducing the wear of friction pairs and prolonging the engine service life.
    • Aluminum Cylinder Head & Body: Improves the heat dissipation capability, cuts the weight and increases the torque of the engine.

    Specifications:

    • Engine Type Single Cylinder, 4-Stroke, OHC, 2-Valve
    • Horsepower 2.82HP/6500Rpm (2.1KW/6500Rpm)
    • Starter Electric/Kick starter
    • Lubrication Pressure/splash
    • Cooling System Air Cooled
    • Fuel Supply Carbureted
    • Max. Torque 3.1N.m/5500rpm
    • Transmission CVT
    • Min. Stable Idle Speed 1450-1750r/min
    • Clutch Shoe-type Automatic Centrifugal Dry Clutch
    • Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h)
    • Cylinder Diameter 1.54" (47mm)
    • Carburetor Model PD18J
    • Piston Stroke 1.63" (41.5mm)
    • Carburetor Type Horizontal Vacuum Carburetor
    • Displacement: 80cc
    • Bore & Stroke 1.54" x 1.63 " (47mm x 41.5mm)
    • Ignition Method CDI
    • Spark Plug Model A7TC
    • Cylinder Working Volume 0.01 Gallon (49.5ml)
    • Fuel Type #87
    • Compression Ratio 10.5:1
    • Lubrication Model SF15W/40-SE
    • Ignition Type CFW
    • Lubrication Capacity 0.20 Gallon (900ml)
    ]]>         <![CDATA[Lifan 125cc Manual Clutch Engine Motor CRF50 XR50 CRF XR 50 70 Dirt Pit Bike Black]]> https://unitedexpressdist.3dcartstores.com/Lifan-125cc-Manual-Clutch-Engine-Motor-CRF50-XR50-CRF-XR-50-70-Dirt-Pit-Bike-Black_p_2332.html Wed, 7 Oct 2026 00:00:00 EST Engine Silver Lifan 125cc Manual Clutch Engine Motor CRF50 XR50 CRF XR 50 70 Dirt Pit Bike This is new race high performance engine, Manual-clutch International shift 1 down 3 up w/Clutch, 4 Stroke 4 Speed Complete Racing Engne for Honda Bikes.Engine...[Read More]
    Our Price: $269.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Lifan-125cc-Manual-Clutch-Engine-Motor-CRF50-XR50-CRF-XR-50-70-Dirt-Pit-Bike-Black_p_2332.html Engine Silver Lifan 125cc Manual Clutch Engine Motor CRF50 XR50 CRF XR 50 70 Dirt Pit Bike This is new race high performance engine, Manual-clutch International shift 1 down 3 up w/Clutch, 4 Stroke 4 Speed Complete Racing Engne for Honda Bikes.Engine...[Read More]
    Our Price: $269.97 [Add to Cart]


    ]]>

    Engine Silver Lifan 125cc Manual Clutch Engine Motor CRF50 XR50 CRF XR 50 70 Dirt Pit Bike

    This is new race high performance engine, Manual-clutch International shift 1 down 3 up w/Clutch, 4 Stroke 4 Speed Complete Racing Engne for Honda Bikes.

    Engine Model: Lifan 1P54FMI-125cc
    Type: 4-Stroke single-cylinder OHC air cooled
    Bore & Stroke: 54 X 54mm
    Compression ratio: 9.47:1
    Displacement: 123.7cc
    Max. HP: 8.72 HP @ 7,500 RPM
    Max. Torque: 8.0N.m @ 5,500 RPM
    Carburetor: Walbro, Mikuni, or Sheng Wey
    Idle: 1,500 RPM
    Starter: Kick Start

    Spark plug: A7TC or NGK C6HSA
    Plug Gap: .28 or 0.6-0.8mm
    Ignition system: CDI (Capacitive Discharge Ignition)
    Lubrication: Pressure / Splash
    Oil capacity: 0.9L (15w/40-SE)
    Measurements: 18 1/4" x 11" x 11"
    Weight: 44.1/4 lbs (Engine only) Shipped 52lbs
    Clutch: manual clutch-wet
    Gears: 4 speed (primary reduction: 3.722 manual, 4.059 Auto)
    Gear Ratios: 2.833/1.706/1.238/0.958
    Magneto: Permanent magnetic
    Voltage: 12 Volt

    This engine has a three disc crank mounted heavy duty manual clutch. The head has a large domed combustion chamber with large valves. The intake valve is 27mm exhaust valve is 23mm.
    This engine must be a neutral to start with a kick starter.

    Wiring:
    wiring diagram
    ]]>         <![CDATA[150cc GY6-A Short Case Scooter Engine Motor 150 Automatic CVT 4-Stroke]]> https://unitedexpressdist.3dcartstores.com/150cc-GY6-A-Short-Case-Scooter-Engine-Motor-150-Automatic-CVT-4-Stroke_p_2333.html Wed, 7 Oct 2026 00:00:00 EST Brand new GY6-A High-Performance ATV QUAD GO-KART MOPED SCOOTER Engine, 4 stroke, AUTO (CVT) clutch Engine comes complete, ready to bolt on. Kickstart lever is included. Compatible with both 125cc and 150cc engine size scooters and vehicles. Specifi...[Read More]
    Our Price: $499.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/150cc-GY6-A-Short-Case-Scooter-Engine-Motor-150-Automatic-CVT-4-Stroke_p_2333.html Brand new GY6-A High-Performance ATV QUAD GO-KART MOPED SCOOTER Engine, 4 stroke, AUTO (CVT) clutch Engine comes complete, ready to bolt on. Kickstart lever is included. Compatible with both 125cc and 150cc engine size scooters and vehicles. Specifi...[Read More]
    Our Price: $499.97 [Add to Cart]


    ]]>
  • Brand new GY6-A High-Performance ATV QUAD GO-KART MOPED SCOOTER Engine, 4 stroke, AUTO (CVT) clutch
  • Engine comes complete, ready to bolt on. Kickstart lever is included.
  • Compatible with both 125cc and 150cc engine size scooters and vehicles.
  • Specification: Style: Short Case; Engine Type: GY6-A Single Cylinder 4-Stroke; Cooling: Air Cooled; Displacement: 149.6cc; Starting: Electric/kick
  • This scooter engine is used in a wide variety of applications, including full-size street legal scooters, all-terrain vehicles (ATVs), dirt bikes, and go-karts.
    • ]]>         <![CDATA[170cc GY6 Engine with Built-In-Reverse Gear ATV Go-Kart 170 Motor 4-Stroke Auto K-Block]]> https://unitedexpressdist.3dcartstores.com/170cc-GY6-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-170-Motor-4-Stroke-Auto-K-Block_p_2447.html Wed, 7 Oct 2026 00:00:00 EST 170cc 4-stroke vertical single cylinder Short Case K-Block with 2-Bolt Valve coverEngine Model: 161QMLElectric startAir cooledAutomatic with reverseBe sure to add 10w40 Motor Oil.Be sure to add 80w90 Gear LubricantUses BELT-743-20-30 ...[Read More]
    Our Price: $947.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/170cc-GY6-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-170-Motor-4-Stroke-Auto-K-Block_p_2447.html 170cc 4-stroke vertical single cylinder Short Case K-Block with 2-Bolt Valve coverEngine Model: 161QMLElectric startAir cooledAutomatic with reverseBe sure to add 10w40 Motor Oil.Be sure to add 80w90 Gear LubricantUses BELT-743-20-30 ...[Read More]
    Our Price: $947.97 [Add to Cart]


    ]]>
  • 170cc 4-stroke vertical single cylinder Short Case K-Block with 2-Bolt Valve cover
  • Engine Model: 161QML
  • Electric start
  • Air cooled
  • Automatic with reverse
  • Be sure to add 10w40 Motor Oil.
  • Be sure to add 80w90 Gear Lubricant
  • Uses BELT-743-20-30
    • ]]>         <![CDATA[150cc GY6 Engine with Built-In-Reverse Gear ATV Go-Kart 150 Motor 4-Stroke Auto]]> https://unitedexpressdist.3dcartstores.com/150cc-GY6-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-150-Motor-4-Stroke-Auto_p_2482.html Wed, 7 Oct 2026 00:00:00 EST 150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSE Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear...[Read More]
    Our Price: $549.00 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/150cc-GY6-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-150-Motor-4-Stroke-Auto_p_2482.html 150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSE Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear...[Read More]
    Our Price: $549.00 [Add to Cart]


    ]]>     150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSE
    Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. Kick start lever and REVERSE HANDLE are included. The reverse gear is built-in, NOT outer reverse box.

    SPECS:

    • Type: 1-cylinder, horizontal, 4-stroke, air-cooled by forced
    • Bore x Stroke: 57.4mm x 57.8mm
    • Displacement: 149.6ml
    • Max. Power & Corresponding Speed: 7.5KW/7500rpm
    • Max. Torque & Corresponding Speed: 10.3N.m/6500rpm
    • Min. Fuel Consumption: =389g/KW.h
    • Pollutant Index: =4.0% (CO), =1000ppm (HC)
    • Clutch Type: automatic centrifugal
    • Start Mode: electric/kick
    • Gearshift Mode: step less

    150cc Short Case GY6 Engine, use 743 Belt

    • Mounting Hole Spacing A: 11.5"
    • Mounting Hole Spacing B: 2.4" X 3.8"
    • Mounting Hole Spacing C: 4.9" X 6.5"
    This engine is used under many names including, Kazuma, Redcat, Roketa, Terminator, Lynx, Tank and many others. The main engine used on these are the GY6 4-stroke engines.
    ]]>         <![CDATA[150cc GY6 Short Case Engine with Built-In-Reverse Gear ATV Go-Kart 150 Motor 4-Stroke Auto]]> https://unitedexpressdist.3dcartstores.com/150cc-GY6-Short-Case-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-150-Motor-4-Stroke-Auto_p_2487.html Wed, 7 Oct 2026 00:00:00 EST 150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSEPlease check the images before ordering.Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. REVERSE HANDLE are included. ...[Read More]
    Our Price: $516.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/150cc-GY6-Short-Case-Engine-with-Built-In-Reverse-Gear-ATV-Go-Kart-150-Motor-4-Stroke-Auto_p_2487.html 150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSEPlease check the images before ordering.Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. REVERSE HANDLE are included. ...[Read More]
    Our Price: $516.97 [Add to Cart]


    ]]>     150CC GY6 150 ATV GO-KART ENGINE MOTOR BUILT-IN REVERSE

    Please check the images before ordering.

    Brand new GY6 High Performance ATV QUAD GO-KART Engine, 4 stroke, AUTO (CVT) clutch. Engine comes complete, ready to bolt on. REVERSE HANDLE are included. The reverse gear is built-in, NOT outer reverse box.

    Details:

    • Type: 1-cylinder, horizontal, 4-stroke, air-cooled by forced
    • Bore x Stroke: 57.4mm x 57.8mm
    • Displacement: 149.6ml
    • Max. Power & Corresponding Speed: 7.5KW/7500rpm
    • Max. Torque & Corresponding Speed: 10.3N.m/6500rpm
    • Min. Fuel Consumption: =389g/KW.h
    • Pollutant Index: =4.0% (CO), =1000ppm (HC)
    • Clutch Type: automatic centrifugal
    • Start Mode: electric
    • Gearshift Mode: step less

    150cc Short Case GY6 Engine, uses 743 Belt


    • Mounting Hole Spacing A: 11.5"
    • Mounting Hole Spacing B: 2.4" X 3.8"
    • Mounting Hole Spacing C: 4.9" X 6.5"
    This engine is used under many names including, Kazuma, Redcat, Roketa, Terminator, Lynx, Tank and many others. The main engine used on these are the GY6 4-stroke engines.
    ]]>         <![CDATA[Redcap Lifan 140cc 4 Stroke Engine Motor, Single Cylinder Pit Dirt Bike Engine Motor Kit Horizontal Oil-Cooled Kick Start 4-Speed Suitable for XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, (Sleek Black)]]> https://unitedexpressdist.3dcartstores.com/Redcap-Lifan-140cc-4-Stroke-Engine-Motor-Single-Cylinder-Pit-Dirt-Bike-Engine-Motor-Kit-Horizontal-Oil-Cooled-Kick-Start-4-Speed-Suitable-for-XR50-XR70-CRF50-CRF70-ATC70-SDG-SSR-Sleek-Black_p_2488.html Wed, 7 Oct 2026 00:00:00 EST Experience the ultimate power upgrade for your dirt pit bike with the Redcap Lifan 140cc 4-stroke engine. Designed for XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, and similar models, this engine delivers unparalleled performance and durability. Boasti...[Read More]
    Our Price: $359.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Redcap-Lifan-140cc-4-Stroke-Engine-Motor-Single-Cylinder-Pit-Dirt-Bike-Engine-Motor-Kit-Horizontal-Oil-Cooled-Kick-Start-4-Speed-Suitable-for-XR50-XR70-CRF50-CRF70-ATC70-SDG-SSR-Sleek-Black_p_2488.html Experience the ultimate power upgrade for your dirt pit bike with the Redcap Lifan 140cc 4-stroke engine. Designed for XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, and similar models, this engine delivers unparalleled performance and durability. Boasti...[Read More]
    Our Price: $359.97 [Add to Cart]


    ]]>     Experience the ultimate power upgrade for your dirt pit bike with the Redcap Lifan 140cc 4-stroke engine. Designed for XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, and similar models, this engine delivers unparalleled performance and durability. Boasting a high-quality aluminum cylinder head, reinforced kick starter axle, and oversized valves, it make certain optimal reliability on any terrain. With its oil-cooled design and high-quality 4-disc clutch, this engine provides seamless power delivery and accurate control for an exhilarating riding experience. At 8 kW/12 hp and 7500 rpm, it offers triple the performance of a standard CRF50 engine, making it the top choice for tuning and racing enthusiasts.
    • High-Performance Engine: Upgrade your pit bike performance with the Redcap Lifan 140cc 4-stroke motor, meticulously crafted to offer unparalleled power and reliability. Compatible with a range of models including XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, and more, it make certain an exhilarating ride on any terrain.
    • Durable Construction: The engine is meticulously crafted with a high-quality aluminum cylinder head, fortified kick starter axle, and generously sized valves and canals. This construction provide exceptional durability and peak performance, meeting the demands of both tuning aficionados and competitive racers alike.
    • Efficient Cooling System: With its innovative oil-cooled design, the Lifan 140cc engine make certain optimal operating temperatures, providing reliable performance even in the most demanding off-road environments. This feature not only enhances the engine's longevity but also boosts overall reliability, making it a trusted choice for adventurous riders.
    • Smooth Clutch System: The engine boasts a premium 4-disc clutch, delivering smooth power transmission and precise engagement for enhanced control on the trails. Riders can enjoy a responsive and enjoyable riding experience, whether tackling rugged terrain or pushing the limits on the track.
    • Installation: While installation of the Lifan 140cc engine is straightforward, it's crucial to note that no installation instructions are provided. For optimal results and safety, it's highly advised to enlist the expertise of professional personnel to ensure proper installation and functionality.
    Specs:
    • Type: 1-cylinder, horizontal, 4-stroke, oil-cooled kick start, Gear: 1N234
    • Bore x Stroke: 55mm x 59mm
    • Max. Power & Corresponding Speed: 8kw(7500±375)
    • Max. Torque & Corresponding Speed: 9.5N.M(5000±250)
    • Start Mode: kick start
    • Compression: 9.0:1
    • Engine Oil: 900ml, 15W/40-SE, 4 stroke
    • Oil GEARS: 4 SPEED MANUAL CLUTCH, 1N234
    • SPROCKET: 15T 428 CHAIN
    • Dimension: 470 x 275 x 280mm
    • Lubrication: 1.1 liters, 15W/40 4-stroke motorcycle oil, pressure and splash
    • Fuel: Unleaded
    Includes:
    • 1 x LIFAN 140CC ENGINE
    • 1 x Kick Starter Lever
    • 1 x Gear Shift Lever
    • 1 x Manifold set Package
    Known to Fit:
    • For XR50 CRF50 XR CRF 50 70 ATC70 SDG SSR Dirt Pit Bike
    • High Performance, 140cc 4 Stroke 4 Speed Complete Racing Engine, a Bolt-In Replacement/ Upgrade for the Xr50/ Crf50
    Note: Before placing an order, please verify the specifics in the photos, your part number, and our fitment.
    ]]>         <![CDATA[Lifan 125cc 4-Stroke Semi-Auto Engine with Honda Style Clutch Cover Assembly Compatible for 125cc Coolster, Taotao, Roketa, Kazuma, Terminator, Lynx, Redcat, Tank, Dirt Bike, Motorcycle (Silver)]]> https://unitedexpressdist.3dcartstores.com/Lifan-125cc-4-Stroke-Semi-Auto-Engine-with-Honda-Style-Clutch-Cover-Assembly-Compatible-for-125cc-Coolster-Taotao-Roketa-Kazuma-Terminator-Lynx-Redcat-Tank-Dirt-Bike-Motorcycle-Silver_p_4885.html Wed, 7 Oct 2026 00:00:00 EST Lifan 125cc 4-Stroke Semi-Auto Engine for Dirt Bike Motorcycle with Honda Style clutch Cover The Lifan 4-Stroke Semi-Auto Engine Assembly is a versatile solution compatible with a variety of 125cc motorcycles, including models like Coolster, Taotao, ...[Read More]
    Our Price: $279.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Lifan-125cc-4-Stroke-Semi-Auto-Engine-with-Honda-Style-Clutch-Cover-Assembly-Compatible-for-125cc-Coolster-Taotao-Roketa-Kazuma-Terminator-Lynx-Redcat-Tank-Dirt-Bike-Motorcycle-Silver_p_4885.html Lifan 125cc 4-Stroke Semi-Auto Engine for Dirt Bike Motorcycle with Honda Style clutch Cover The Lifan 4-Stroke Semi-Auto Engine Assembly is a versatile solution compatible with a variety of 125cc motorcycles, including models like Coolster, Taotao, ...[Read More]
    Our Price: $279.97 [Add to Cart]


    ]]>     Lifan 125cc 4-Stroke Semi-Auto Engine for Dirt Bike Motorcycle with Honda Style clutch Cover

    The Lifan 4-Stroke Semi-Auto Engine Assembly is a versatile solution compatible with a variety of 125cc motorcycles, including models like Coolster, Taotao, Roketa, and more. Its specifications ensure optimal functionality, featuring a CDI ignition method, single-cylinder 4-stroke design, and efficient air-cooled cooling system. With a 4-speed semi-automatic transmission and electric starter, it delivers smooth power delivery and easy operation. The engine boasts a maximum horsepower of 7.64HP at 7000-8000 RPM and a torque of 8.0N.m at 5000-6000 RPM, making it suitable for various riding conditions. Equipped with a multi-plate wet clutch and PZ22 carburetor, it offers reliable performance and fuel efficiency. The included wiring instructions simplify installation, with clear color codes for different connections, ensuring hassle-free setup and operation.
    • Engine Assembly: The Semi-Auto Engine includes all essential components such as the engine assembly, intake manifold pipe, and spark plug, providing a comprehensive solution for engine replacement or maintenance.
    • Compatible Applications: This engine assembly has been carefully designed to fit a range of 125cc motorcycles, including popular models like Kolster, Tautou, Rokita and others. Its versatile design has some compatibility in different models.
    • Compatible Applications: This engine assembly is meticulously crafted to fit a range of 125cc motorcycles, including popular models like Coolster, Taotao, Roketa, and others. Its versatile design make certain compatibility across different models.
    • Engine Configuration: This engine boasts a single-cylinder, 4-stroke configuration coupled with an air-cooled system, ensuring efficient heat dissipation and reliable performance. Paired with a semi-automatic transmission system, it delivers optimum power delivery.
    • Wiring Details: The wiring scheme features distinct color codes for easy identification and connection, yellow lines for 12V battery or lighting, red/black lines for firing, blue/white lines for triggering, and green lines for grounding, simplifying installation and ensuring proper electrical functionality.
    Details:
    • Ignition Method CDI
    • Engine Type Single Cylinder, 4-Stroke, 2-Valve
    • Cooling System Air Cooled
    • Fuel Supply Carburetor Atomization
    • Horsepower 7.64HP/7000-8000Rpm (5.7KW/7000-8000Rpm)
    • Starter Electric Starter
    • Max. Torque 8.0N.m/5000-6000rpm
    • Transmission: 4-Speed Semi Automatic (1 Down, 3 Up)
    • Min. Stable Idle Speed 1350-1650r/min
    • Clutch Automatic Multi-plate Wet Clutch
    • Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h)
    • Cylinder Diameter 2.13" (54mm)
    • Carburetor Model PZ22
    • Carburetor Type Plunger type carburetor
    • Bore & Stroke 2.13" x 1.95" (54mm x 49.5mm)
    • Spark Plug Model A7TC
    • Cylinder Working Volume 0.03 Gallon (120ml)
    • Compression Ratio 9.0:1
    • Lubrication Model SF15W/40-SE
    • Ignition Type: CFW
    • Lubrication Capacity 0.20 Gallon (900ml)
    • Model: 154FMI
    Includes:
    • Engine Assembly
    • Intake Manifold Pipe
    • Spark Plug
    • Sprocket 14T 428 chain size
    Wiring:
    • yellow lines: 12v battery or lighting
    • red/black line: firing
    • blue/white line: trigger
    • green line: ground
    NOTE: Please check the images and physical size to ensure you order the correct Engine. DOES NOT come with Carburetor, CDI, Voltage Regulator or Ignition Coil.
    ]]>         <![CDATA[OEM Complete Engine Assambly Compatible for Kids Mini Dirt Bike DB-S60 60cc, SE60, Apollo RXF Mini 50, Bosuer BSE PH01A, YCF 50A, CRZ 50S, - Version DB-S60 (Silver)]]> https://unitedexpressdist.3dcartstores.com/OEM-Complete-Engine-Assambly-Compatible-for-Kids-Mini-Dirt-Bike-DB-S60-60cc-SE60-Apollo-RXF-Mini-50-Bosuer-BSE-PH01A-YCF-50A-CRZ-50S--Version-DB-S60-Silver_p_4962.html Wed, 7 Oct 2026 00:00:00 EST Complete Engine 60cc Kids Mini Dirt Bike DB-S60 60cc Kids Dirt Bike SE60 1P44FMCRedCap OEM Complete Engine Assembly provides unparalleled performance, durability, and longevity for kids' mini dirt bikes. Compatible with models like DB-S60, SE60, Apol...[Read More]
    Our Price: $229.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/OEM-Complete-Engine-Assambly-Compatible-for-Kids-Mini-Dirt-Bike-DB-S60-60cc-SE60-Apollo-RXF-Mini-50-Bosuer-BSE-PH01A-YCF-50A-CRZ-50S--Version-DB-S60-Silver_p_4962.html Complete Engine 60cc Kids Mini Dirt Bike DB-S60 60cc Kids Dirt Bike SE60 1P44FMCRedCap OEM Complete Engine Assembly provides unparalleled performance, durability, and longevity for kids' mini dirt bikes. Compatible with models like DB-S60, SE60, Apol...[Read More]
    Our Price: $229.97 [Add to Cart]


    ]]>     Complete Engine 60cc Kids Mini Dirt Bike DB-S60 60cc Kids Dirt Bike SE60 1P44FMC

    RedCap OEM Complete Engine Assembly provides unparalleled performance, durability, and longevity for kids' mini dirt bikes. Compatible with models like DB-S60, SE60, Apollo RXF Mini 50, Bosuer BSE PH01A, YCF 50A, and CRZ 50S, it make certain a seamless fit and optimized functionality. Engineered with an efficient cooling system, it improves reliability even during intense off-road rides. This version in silver delivers both style and substance, providing young riders with a thrilling and dependable experience on the trails.
    • Compatibility: This engine is meticulously crafted to effortlessly integrate with a range of popular mini dirt bike models, including the Kandi Dirt Bike Engine SE60, Apollo RXF Mini 50, Bosuer BSE PH01A, YCF 50A, and CRZ 50S, optimizing performance and compatibility for an unparalleled riding experience.
    • Enhanced Performance: With its robust 60cc engine, this dirt bike provides optimal power delivery and consistent performance, ideal for young riders exploring off-road adventures, this engine provides the reliability needed for an enjoyable and safe riding experience.
    • Durability & Longevity: Crafted with high-quality materials, this engine is built to endure the demanding conditions of off-road riding, makes certain long-lasting durability even in challenging environments. Its robust construction provides peace of mind, allowing riders to focus on their exploration.
    • Easy Installation: For providing the hassle-free installation experience the assembly process is straightforward for motorcycle enthusiasts. With clear instructions and user-friendly design, installing this engine assembly is accessible to riders of varying skill levels.
    • Efficient Cooling System: With its innovative oil-cooled design, the engine make certain optimal operating temperatures, providing reliable performance even in the most demanding off-road environments. This feature not only enhances the engine's longevity.
    Included:
    • Gasket Set
    • 1x Chain Sprocket
    • 1x Intake Manifold Pipe
    Note: Check pictures and specifications for compatibility.
    ]]>         <![CDATA[Lifan 110cc 4-Stroke Manual Engine for Dirt Bike Motorcycle with Honda Style clutch Cover]]> https://unitedexpressdist.3dcartstores.com/Lifan-110cc-4-Stroke-Manual-Engine-for-Dirt-Bike-Motorcycle-with-Honda-Style-clutch-Cover_p_5018.html Wed, 7 Oct 2026 00:00:00 EST Lifan 110cc 4-Stroke Manual Engine for Dirt Bike Motorcycle with Honda Style clutch Cover Lifan High Quality Engine, 4 StrokeFits most 110cc Dirt Bikes and Motorcycles with Honda-Style Engine. Includes: Engine Assembly as pictured Intake Manifold Pip...[Read More]
    Our Price: $299.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Lifan-110cc-4-Stroke-Manual-Engine-for-Dirt-Bike-Motorcycle-with-Honda-Style-clutch-Cover_p_5018.html Lifan 110cc 4-Stroke Manual Engine for Dirt Bike Motorcycle with Honda Style clutch Cover Lifan High Quality Engine, 4 StrokeFits most 110cc Dirt Bikes and Motorcycles with Honda-Style Engine. Includes: Engine Assembly as pictured Intake Manifold Pip...[Read More]
    Our Price: $299.97 [Add to Cart]


    ]]>     Lifan 110cc 4-Stroke Manual Engine for Dirt Bike Motorcycle with Honda Style clutch Cover

    Lifan High Quality Engine, 4 Stroke

    Fits most 110cc Dirt Bikes and Motorcycles with Honda-Style Engine.

    Includes:

    • Engine Assembly as pictured
    • Intake Manifold Pipe
    • Spark Plug
    • Sprocket 14T 428 chain size

    DOES NOT come with Carburetor, CDI, Voltage Regulator or Ignition Coil.

    Compatible Models: Coolster, Taotao, Roketa, Kazuma, Terminator, Lynx, Redcat, Tank and more.

    NOTE: Please check the images and physical size to ensure you order the correct Engine.

    Specifications:

    • Ignition Method CDI
    • Engine Type Single Cylinder, 4-Stroke, 2-Valve
    • Lubrication Pressure/splash
    • Cooling System Air Cooled
    • Fuel Supply Carburetor Atomization
    • Horsepower 7.64HP/7000-8000Rpm (5.7KW/7000-8000Rpm)
    • Starter Electric Starter
    • Max. Torque 8.0N.m/5000-6000rpm
    • Transmission: 4-Speed Manual (1 Down, 3 Up)
    • Min. Stable Idle Speed 1350-1650r/min
    • Clutch Automatic Multi-plate Wet Clutch
    • Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h)
    • Cylinder Diameter 2.13" (54mm)
    • Carburetor Model PZ22
    • Piston Stroke 1.95" (49.5mm)
    • Carburetor Type Plunger type carburetor
    • Bore & Stroke 2.13" x 1.95" (54mm x 49.5mm)
    • Spark Plug Model A7TC
    • Cylinder Working Volume 0.03 Gallon (120ml)
    • Fuel No. >= 87#
    • Compression Ratio 9.0:1
    • Lubrication Model SF15W/40-SE
    • Ignition Type CFW
    • Lubrication Capacity 0.20 Gallon (900ml)
    • Model: 154FMI
    Wiring:
    • yellow lines: 12v battery or lighting
    • red/black line: firing
    • blue/white line: trigger
    • green line: ground
    ]]>         <![CDATA[Engine - 125cc Automatic w/ Reverse 4-stroke Electric Start ATV GO Karts 1P52FMH]]> https://unitedexpressdist.3dcartstores.com/Engine--125cc-Automatic-w-Reverse-4-stroke-Electric-Start-ATV-GO-Karts-1P52FMH_p_5079.html Wed, 7 Oct 2026 00:00:00 EST Engine - 125cc Automatic 152FM ATV (Automatic Transmission With Reverse)Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc 125cc since the mounting holes are sameWill not fit engine with starter bottom mounted since the mounting holes different....[Read More]
    Our Price: $296.95 On Sale [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Engine--125cc-Automatic-w-Reverse-4-stroke-Electric-Start-ATV-GO-Karts-1P52FMH_p_5079.html Engine - 125cc Automatic 152FM ATV (Automatic Transmission With Reverse)Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc 125cc since the mounting holes are sameWill not fit engine with starter bottom mounted since the mounting holes different....[Read More]
    Our Price: $296.95 On Sale [Add to Cart]


    ]]>     Engine - 125cc Automatic 152FM ATV (Automatic Transmission With Reverse)

    Fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc 125cc since the mounting holes are same
    Will not fit engine with starter bottom mounted since the mounting holes different.

    Condition: Brand New
    Engine Type: Single Cylinder, 4-Stroke, 2-Valve, Air Cooled
    Horsepower(KW/Rpm): 5.7/7500±500
    Max. Torque(N?m/Rpm): 8.0/5500±500
    Min. Fuel Consumption(g/Kw.h): 367
    Bore*Stroke: 52mmx49.5mm
    Displacement(cc): 120
    Compression ratio: 9.0:1
    Ignition: CDI
    Lubrication: Pressure/splash
    Starter:Electric Starter
    Transmission:Auto Transmission with Reverse
    Carburetor Model: PZ22
    Oil capacity(ml):900

    Wiring:

    • Black/Red = Ignition
    • Blue/White = Trigger
    • Yellow/Pink = 12v battery or lighting
    • Green = Ground
    • Plug wire = Shift Cable

    Fits the following brands: Kinroad, Roketa, Sunl, BMS, BMX, Baja, JCL, Taotao, Peace, Jonway, Kazuma, KMD, NST, Redcat, Roketa,Tank, Buyang, Coolsport, AIM-EX etc.

    It is good idea if you like to either replace your old engine or upgrade your ATV or Go kart to be faster or more powerful

    ]]>         <![CDATA[RedCap Lifan 140cc 4-Stroke Racing Engine Motor Kit, Single Cylinder Horizontal Oil-Cooled Kick Start, Compatible for XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR, Dirt Bike, Pit Bike (Midnight Silver)]]> https://unitedexpressdist.3dcartstores.com/RedCap-Lifan-140cc-4-Stroke-Racing-Engine-Motor-Kit-Single-Cylinder-Horizontal-Oil-Cooled-Kick-Start-Compatible-for-XR50-XR70-CRF50-CRF70-ATC70-SDG-SSR-Dirt-Bike-Pit-Bike-Midnight-Silver_p_5169.html Wed, 7 Oct 2026 00:00:00 EST Midnight Silver - Lifan 140cc Engine Oil Cooled Motor Clutch Carburetor for Pit Bike Motorcycle USHIGH PERFORMANCE, 140CC 4 STROKE 4 SPEED COMPLETE RACING ENGINE, a bolt-in replacement/ upgrade for the XR50/ CRF50Horsepower is More than FOUR TIMES o...[Read More]
    Our Price: $359.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/RedCap-Lifan-140cc-4-Stroke-Racing-Engine-Motor-Kit-Single-Cylinder-Horizontal-Oil-Cooled-Kick-Start-Compatible-for-XR50-XR70-CRF50-CRF70-ATC70-SDG-SSR-Dirt-Bike-Pit-Bike-Midnight-Silver_p_5169.html Midnight Silver - Lifan 140cc Engine Oil Cooled Motor Clutch Carburetor for Pit Bike Motorcycle USHIGH PERFORMANCE, 140CC 4 STROKE 4 SPEED COMPLETE RACING ENGINE, a bolt-in replacement/ upgrade for the XR50/ CRF50Horsepower is More than FOUR TIMES o...[Read More]
    Our Price: $359.97 [Add to Cart]


    ]]>

    Midnight Silver - Lifan 140cc Engine Oil Cooled Motor Clutch Carburetor for Pit Bike Motorcycle US

    HIGH PERFORMANCE, 140CC 4 STROKE 4 SPEED COMPLETE RACING ENGINE, a bolt-in replacement/ upgrade for the XR50/ CRF50

    Horsepower is More than FOUR TIMES of stock CRF 50!! This motor is the Biggest that is being currently offered in the aftermarket industry!

    Experience the ultimate of performance with the RedCap LIFAN 140cc engine, tailored for tuning and racing enthusiasts seeking top-tier quality and unmatched power. Boasting a premium aluminum cylinder head, reinforced kick starter axle, and oversized valves and channels, this engine delivers unparalleled performance and durability. Equipped with a high-quality 4-disc clutch, it make certain smooth power delivery and enhanced control on the track or trail. With an impressive output of 8kW/12hp at 7500 rpm, it surpasses the standard CRF50 engine's performance by more than triple. Featuring a 1-cylinder horizontal design and oil-cooled kick start, this engine a reliable ignition and efficient cooling. Complete with essential components including a kick starter lever, gear shift lever, and manifold set package, it's ready to elevate your riding experience to new heights.
    • Complete Engine: The Redcap Lifan 140cc 4-stroke engine motor improve the performance of your pit bike. It is expertly designed to provide unmatched power and dependability. It ensures an exciting ride on any terrain and is compatible with a variety of models, including XR50, XR70, CRF50, CRF70, ATC70, SDG, SSR Dirt Pit Bike.
    • Clutch System: The engine's high-end 4-disc clutch provides accurate engagement and seamless power transfer for improved trail control. Whether taking on challenging terrain or pushing the envelope on the track, riders can count on a responsive and pleasurable riding experience.
    • Efficient Cooling System: The Lifan 140cc engine make certain ideal operating temperatures through its unique oil-cooled architecture, offering dependable performance even in the most taxing off-road conditions. This feature increases overall reliability and extends the engine's lifespan, making it a reliable option for riders who like to take risks.
    • Sturdy Construction: With a premium aluminium cylinder head, a reinforced kick starting axle, and large valves and canals, the engine is expertly built. The remarkable longevity and peak performance of this architecture fulfil the needs of both competitive racers and tuning enthusiasts.
    • Easy Installation: The Lifan 140cc engine is simple to install, however it's important to know that there are no installation instructions included. It is strongly encouraged to seek the assistance of professionals to make certain correct installation and performance for best results and safety.
    Details:
    • Type: 1-cylinder, horizontal, 4-stroke, oil-cooled kick start, Gear: 1N234
    • Bore x Stroke: 55mm x 59mm
    • Max. Power & Corresponding Speed: 8kw(7500±375)
    • Max. Torque & Corresponding Speed: 9.5N.M(5000±250)
    • Start Mode: kick start
    • Compression: 9.0:1
    • Engine Oil: 900ml, 15W/40-SE, 4 stroke
    • Oil GEARS: 4 SPEED MANUAL CLUTCH, 1N234
    • SPROCKET: 15T 428 CHAIN
    • Dimension: 470 x 275 x 280mm
    • Lubrication: 1.1 liters, 5W/40 4-stroke motorcycle oil, pressure and splash
    • Fuel: Unleaded
    • With 8 kW/12 hp by 7500 rpm the engine reaches more than the triple performance of a standard CRF50 engine.
    Package includes:
    • 1 x LIFAN 140CC ENGINE
    • 1 x Kick Starter Lever
    • 1 x Gear Shift Lever
    • 1 x Manifold set Package
    Note: Check pictures and measurements to verify if this product is the correct application for your model.
    Wiring:
    wiring diagram
    ]]>         <![CDATA[OEM Manual 6 Speed Complete Engine Assembly for Jonway GTX 250 EFI XMT 250 EFI]]> https://unitedexpressdist.3dcartstores.com/OEM-Manual-6-Speed-Complete-Engine-Assembly-for-Jonway-GTX-250-EFI-XMT-250-EFI_p_5170.html Wed, 7 Oct 2026 00:00:00 EST The OEM Manual 6 Speed Complete Engine Assembly is specifically designed for the Jonway GTX 250 EFI and XMT 250 EFI motorcycle, ensuring perfect compatibility with its manual 6-speed transmission. Engineered to enhance both the efficiency and style o...[Read More]
    Our Price: $999.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/OEM-Manual-6-Speed-Complete-Engine-Assembly-for-Jonway-GTX-250-EFI-XMT-250-EFI_p_5170.html The OEM Manual 6 Speed Complete Engine Assembly is specifically designed for the Jonway GTX 250 EFI and XMT 250 EFI motorcycle, ensuring perfect compatibility with its manual 6-speed transmission. Engineered to enhance both the efficiency and style o...[Read More]
    Our Price: $999.97 [Add to Cart]


    ]]>     The OEM Manual 6 Speed Complete Engine Assembly is specifically designed for the Jonway GTX 250 EFI and XMT 250 EFI motorcycle, ensuring perfect compatibility with its manual 6-speed transmission. Engineered to enhance both the efficiency and style of your motorcycle, this assembly is crafted to OEM specifications for optimal performance. While installation by a professional mechanic is recommended, the process is made easy due to its seamless integration with the vehicle. With no returns accepted, this replacement engine promises reliability and a seamless fit for your Jonway GTX 250 EFI, guaranteeing a smooth and stylish ride on the road.

    Product Detail:
    • Perfect Compatibility: Specifically designed as an accurate replacement component for the Jonway GTX 250 EFI motorcycle with manual 6-speed transmission.
    • Enhance Efficiency and Style: This complete engine assembly is engineered to enhance both the performance efficiency and visual aesthetics of your motorcycle.
    • Easy Installation: While professional installation is recommended for optimal results, the assembly process is straightforward, ensuring a hassle-free experience.
    • OEM Spec Replacement: Crafted to OEM specifications, ensuring the highest quality and reliability for your Jonway GTX 250 EFI motorcycle.
    • Note: Before placing an order, please verify the specifics in the photos, your part number, and our fitment. Must be installed by a professional mechanic. (No Returns accepted)
    Known to fit: Jonway GTX 250 EFI and XMT 250 EFI motorcycle
    ]]>         <![CDATA[RedCap 125cc 4-Stroke Complete Racing Engine Motor Assembly, Single Cylinder with Air-Cooled Compatible for 125cc 4-speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMI, Honda Bikes - (Silver)]]> https://unitedexpressdist.3dcartstores.com/RedCap-125cc-4-Stroke-Complete-Racing-Engine-Motor-Assembly-Single-Cylinder-with-Air-Cooled-Compatible-for-125cc-4-speed-Manual-Clutch-Pit-Dirt-Bike-Coolster-CRF-1P54FMI-Honda-Bikes--Silver_p_5190.html Wed, 7 Oct 2026 00:00:00 EST 125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMIThe RedCap Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 down and 3...[Read More]
    Our Price: $299.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/RedCap-125cc-4-Stroke-Complete-Racing-Engine-Motor-Assembly-Single-Cylinder-with-Air-Cooled-Compatible-for-125cc-4-speed-Manual-Clutch-Pit-Dirt-Bike-Coolster-CRF-1P54FMI-Honda-Bikes--Silver_p_5190.html 125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMIThe RedCap Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 down and 3...[Read More]
    Our Price: $299.97 [Add to Cart]


    ]]>

    125cc MOTOR ENGINE 4 speed Manual Clutch Pit Dirt Bike Coolster CRF 1P54FMI

    The RedCap Lifan 125cc 4-Stroke Racing Engine Motor Assembly provides capabilities for adrenaline-fueled rides. Featuring a manual-clutch International shift with 1 down and 3 up gear ratios, it's designed for racing seeking accuracy and power. With its durable 4-stroke single-cylinder OHC air-cooled design, this engine delivers reliable functioning across different terrains. Equipped with a robust 8.72 HP output at 7,500 RPM and a maximum torque of 8.0N.m at 5,500 RPM, it makes certain exhilarating acceleration and control. Compatible with Honda bikes and boasting a three-disc crank-mounted heavy-duty manual clutch, this engine provides durability. Whether navigating dirt tracks or conquering racing circuits.
    • Included Package: The included package for the 125CC 1P52FMI engine features essential components such as the kick starter lever, gear shift lever, carburetor, intake manifold, and CDI unit, providing a comprehensive setup for scooter enthusiasts. The package provides convenience and peace of mind for hassle-free installation.
    • Elevated Efficiency: The Lifan 1P54FMI-125cc engine stands out for its exceptional efficiency, delivering a robust 8.72 HP at 7,500 RPM. This power makes it a top choice for racing enthusiasts and off-road adventurers, making certain an exhilarating ride across any terrain and providing a dependable adventure.
    • Reliable Ignition: The Lifan 1P54FMI-125cc engine features a dependable CDI ignition system for consistent delivery. This reliability ensures optimal performance even in demanding conditions, where accurate ignition timing is crucial. Whether navigating rough terrain or racing, riders can believe this ignition system.
    • Sturdy Construction: The Lifan 1P54FMI-125cc engine features a durable 4-stroke single-cylinder OHC air-cooled design. Its robust construction, including a large domed combustion chamber and heavy-duty manual clutch, ensures longevity and endurance in different riding conditions. A reliable choice for efficiency on and off the track.
    • Ease of Maintenance: This engine is designed for ease of maintenance with accessible components like the Kickstarter and different carburetor options. This accessibility simplifies maintenance and tuning, reducing downtime and improving performance, allowing riders to effortlessly maintain optimal engine longevity and reliability.
    Specs:
    • Engine Model: Lifan 1P54FMI-125cc
    • Type: 4-stroke single-cylinder OHC air-cooled
    • Bore & Stroke: 54 X 54mm
    • Compression ratio: 9.47:1
    • Displacement: 123.7cc
    • Max. HP: 8.72 HP @ 7,500 RPM
    • Max. Torque: 8.0N.m @ 5,500 RPM
    • Carburetor: Walbro, Mikuni, or Sheng Wey
    • Idle: 1,500 RPM
    • Starter: KickStart
    • Spark plug: A7TC or NGK C6HSA
    • Plug Gap: .28 or 0.6-0.8mm
    • Ignition system: CDI (Capacitive Discharge Ignition)
    • Lubrication: Pressure / Splash
    • Oil capacity: 0.9L (15w/40-SE)
    • Measurements: 18 1/4" x 11" x 11"
    • Weight: 44.1/4 lbs (Engine only) Shipped 52lbs
    • Clutch: manual clutch-wet
    • Gears: 4 speed (primary reduction: 3.722 manual, 4.059 Auto)
    • Gear Ratios: 2.833/1.706/1.238/0.958
    • Magneto: Permanent magnetic
    • Voltage: 12 Volt
    • Sprocket: 428 15T 20mm
    This is a new race high-efficiency engine, Manual-clutch International shift 1 down 3 up w/Clutch, 4 Stroke 4 Speed Complete Racing Engine for Honda Bikes. This engine has a three-disc crank-mounted heavy-duty manual clutch. The head has a large domed combustion chamber with large valves. The intake valve is 27mm exhaust valve is 23mm. This engine must be neutral to start with a Kickstarter.

    Note: Check pictures and measurements to verify if this product is the correct application for your model.
    ]]>         <![CDATA[Engine Sprocket 520 13T - Jonway GTX 250 EFI]]> https://unitedexpressdist.3dcartstores.com/Engine-Sprocket-520-13T--Jonway-GTX-250-EFI_p_5511.html Wed, 7 Oct 2026 00:00:00 EST Engine Sprocket 520 20mm 13 Tooth specifically designed for the Jonway GTX 250 EFI motorcycleDetails:Sprocket #520 Chain sizeID: 20mm shaft13 TeethNote: Please check pictures for more details, and check your part number and our fitment before placing...[Read More]
    Our Price: $12.97 [Add to Cart]


    ]]>     https://unitedexpressdist.3dcartstores.com/Engine-Sprocket-520-13T--Jonway-GTX-250-EFI_p_5511.html Engine Sprocket 520 20mm 13 Tooth specifically designed for the Jonway GTX 250 EFI motorcycleDetails:Sprocket #520 Chain sizeID: 20mm shaft13 TeethNote: Please check pictures for more details, and check your part number and our fitment before placing...[Read More]
    Our Price: $12.97 [Add to Cart]


    ]]>     Engine Sprocket 520 20mm 13 Tooth specifically designed for the Jonway GTX 250 EFI motorcycle

    Details:
    • Sprocket #520 Chain size
    • ID: 20mm shaft
    • 13 Teeth
    Note: Please check pictures for more details, and check your part number and our fitment before placing an order.
    ]]>