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Your cart is empty.Product Description
140cc 4-Stroke Semi Auto Engine Motor Kit Pit Bike Engine
- Fits for 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. Please note this is for reference only, if you are unsure, please ask your local dealer.
- 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)
Package Included
- 1 x 140CC Engine
- 1 x Kick Starter Lever
- 1 x Gear Shift Lever
- 1 x Sprocket Cover
- 1 x Washer + 2 x Gaskets
- 1 x Carburetor + 1 x CDI
- 1 x Intake Manifold
- 7 x Screws
- This 140cc dirt bike engine is made of high-quality aluminium alloy and cast steel, which is strong and durable.
- 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.
- The 140cc pit bike engine is manufactured in accordance with the original factory parameters and matches your car greatly. And the complete accessories allow you to complete installation and start using it in a short period of time
- The product is manufactured in accordance with the original factory parameters and matches your car greatly. And the complete accessories allow you to complete installation and start using it in a short period of time.
Notes
- Please carefully check compatibility before purchasing to ensure that the product is suitable.
- We strongly recommend professional installation.
- Please allow for slight color differences caused by shooting light and errors caused by manual measurement, and make sure you don't mind before ordering. If you have any questions,and we will reply and solve your problem as soon as possible.
Brandon babin
August 23, 2025
super fast shipping an overall great item very happy with my purchase
Customer
August 21, 2025
For the most part this works great. Good power, not too loud, starts first pull, easy install, but one of the holes on bottom of motor won't align with holes on bike frame. Maybe a drill and a large washer will fix, but 3 bolts holds the 49cc in place.
Shane
August 19, 2025
Dipstick broke, wires broke, the seal for intake was half off and styrofoam was in motor stator is cracked from not being seated right.
Abelardo Cardenas
July 1, 2025
My minibike gonna be fast awesome ðŸ‘
Jesslyn
June 16, 2025
The product 140cc has a wrong description. It's actually a 125 cc. Don't be fooled! Came broken cracked full of oil and with chopped wires.
Customer
April 7, 2025
The drive box was to long but was able to use old drive box both motors run great . The car on one does leak fuel from the overflow so will have to eventually replace it
bill simpson
April 4, 2025
Perfect fit. Installed it immediately and it runs great.
Alek Z
February 21, 2025
Order this not to long ago as a replacement engine for my sons ATV.Once installed and fed gas it started on the third pull. Quality of the other parts included matches the price. Only giving 4 stars because there wasn’t a manual
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