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LIYUANJUN

4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shift Lever Single-Cylinder Motor for Honda CRF50 Pit Dirt Bike 4 Speed Manual Clutch Carburetor

  • Based on 8 reviews
Condition: New
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$309.99 Why this price?
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Availability: In Stock.
Fulfilled by Jirestoo
Arrives Wednesday, May 13
Order within 1 hour and 42 seconds
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Size: 140 cc 4-Stroke Racing Engine


Features

  • Wide Application(For the reference)The engine fitd 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 not a guarantee, if you are unsure, please ask your local dealer.
  • Main Parameters 1 Gear: 1N234; Ignition: CDI; Displacement: 140cc; Bore x Stroke: 55mm x 59mm; Max. Power & Corresponding Speed: 8kw(7500375); Start Mode: Kick starter; Compression: 9.0:1;
  • What You will GetThis 4 stroke racing engine kit includes 1 x 140cc engine, 1 x kick starter lever, 1 x gear shift lever, 1 x set package, 1x carburetor,1xcdi. All of these can be your good help on your travel road!
  • Main Parameters 2 Engine Oil: 900ml, 15W/40-SE, 4 stroke; Oil GEARS: 4 SPEED MANUAL CLUTCH, 1N234; Max. Torque & Corresponding Speed: 9.5N.M(5000250); SPROCKET: 15T 428 17mm
  • Quality AssuranceWe have a strict quality assurance system, and products are tested before they are put on the market. If you encounter any problems, we will provide the best service and give you the most satisfactory answer!

Description

Specifications:Type: Single-cylinder, horizontal, 4-strokeGear: 1N234Ignition: CDIDisplacement: 140ccBore x Stroke: 55mm x 59mmMax. Power & Corresponding Speed: 8kw(7500±375)Max. Torque & Corresponding Speed: 9.5N.M(5000±250)Start Mode: Kick starterCompression: 9.0:1Engine Oil: 900ml, 15W/40-SE, 4 strokeOil GEARS: 4 SPEED MANUAL CLUTCH, 1N234SPROCKET: 15T 428 17mmPackage includes:1 x 140CC ENGINE1 x Kick Starter Lever1 x Gear Shift Lever1 x set Package1x Carburetor1CDI

Brand Name: LIYUANJUN


Manufacturer: LIYUANJUN


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Great exsperience
Size: 140 cc 4-Stroke Racing Engine
A great experience we had one come in broken but seller replaced it no issues and they work great and the sellers are wonderful !
Reviewed in the United States on April 8, 2026 by Erica sturgill
    • Not worth it.
Size: 140 cc 4-Stroke Racing Engine
Review Image by Jr
Okay, Engine got here today was supper excited so I installed it for my son so we could go out for a ride. Well the kick start only engages like 1 out of every 5 or 10 kicks. Okay got it started let it idles for 2 minutes shut it off, now go to start it again started up but the engine started to make a horrible noise so I let it cool down check oil and gas it’s all good still. Go to start it again NOW it won’t even kick over at all seems locked up! Waiting on a response from seller supper disappointed for spending over $350 on this engine and shipping. ... show more
Reviewed in the United States on February 3, 2026 by Jr
    • Not a Honda but close
Size: 140 cc 4-Stroke Racing Engine
Good for the money
Reviewed in the United States on December 20, 2025 by shane lowry
    • The quality of customer service is outstanding
Size: 140 cc 4-Stroke Racing Engine
Review Image by Logan T
Review Image by Logan T
Fantastic engine and customer service the engine showed up early and was in perfect condition besides one cable that got pinched and cut but I messaged them and they refunded me some money to purchase a new one. Can't complain with that, thank you much! And for anyone wondering how to wire the engine I've attached a picture from the Internet on how it's done. ... show more
Reviewed in the United States on May 17, 2025 by Logan T
    • WTF
Size: 140 cc 4-Stroke Racing Engine
was running nice for a little less than a month or just under ten hours and then the right side engine case popped and sprayed hot oil all over my leg. P. O. S.
Reviewed in the United States on May 19, 2025 by Jeremy f.

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