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4 Stroke 140CC Pit Bike Engine Kit, Kick Starter Single Cylinder Motorcycle Engine, 4 Speed Horizontal Manual Clutch Motocross Engine, for Honda CRF50 Motocross Bike

5.0 (1) Write Review
Free shipping on orders over $29.99

$219.99

$ 86 .99 $86.99

In Stock
  • Durable Construction for Long-Lasting Use: Built from high-quality aluminum alloy and cast steel, this engine is designed to withstand tough conditions. Its robust construction ensures durability and reliability, even during intense riding sessions.
  • Powerful Force: The engine kit boasting a maximum power of 8kw (7500±375) and maximum torque of 9.5N.M(5000±250) delivers an impressive surge of strength and control to the vehicle.
  • Easy to Start and Smooth Gear Shifting: Equipped with a kick starter and a 4-speed manual clutch (1N234), this engine offers smooth gear transitions and effortless starting. The CDI ignition system ensures reliable spark and consistent performance.
  • High-Performance 140CC Engine for Pit Bikes & Dirt Bikes: This 4-stroke, single-cylinder engine delivers 8kW of power and a maximum torque of 9.5N.m, making it perfect for pit bikes, dirt bikes, and motorcycles. With a speed of 7500±375rpm, it provides reliable and powerful performance for off-road adventures.
  • Compatible with Popular Mini Bike Models: This engine is compatible with a wide range of models, including HONDA CRF50, CRF70, XR50, XR70, Z50, CT70, and more. It’s a perfect replacement or upgrade for mini trail bikes and pit bikes.


Specifications

Material: Aluminium Alloy, Cast Steel

Type: Single-cylinder, Horizontal, Four-stroke

Gear: 1N234

Ignition: CDI

Condition: New

Displacement: 140cc

Bore x Stroke: 55* 59mm/2.2*2.3in

Max. Power & Corresponding Speed: 8kw(7500±375)

Max. Torque & Corresponding Speed: 9.5N.M(5000±250)

Start Mode: Kick Starter

Compression: 9.0:1

Engine Oil: 900ml/30.44Oz, 15W/40-SE, 4 Stroke

Oil Gears: 4 Speed Manual Clutch, 1N234

Sprocket: 14T 428 17mm/0.67in

Applicable Models: HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50 /

Package Included

1*140CC Engine

1*Kick Starter Lever

1*Gear Shift Lever

1*Sprocket Cover

1*Washer

2*Gaskets

1*Carburetor

1*CDI

1*Intake Manifold

7*Screws


Justin Eisler
Reviewed in the United States on March 26, 2025
The engine runs and shifts well and is powerful. This is a great engine for the money.
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