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Ebikestar

140CC Engine 4 Stroke Racing Engine, 4 Speed Horizontal Single Cylinder Motor Engine CDI Kick Starter Manual Clutch Fit For Pit Dirt Bike, Honda CRF50 CRF70 XR50 XR70 Z50 Z50R

  • Based on 13 reviews
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Availability: 20 left in stock
Fulfilled by Wenrun-shop
Arrives May 17 – May 22
Order within 2 hours and 22 minutes
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Features

  • High Performance EngineA high performance single cylinder, horizontal 4-stroke engine,140cc Displacement, 8kw Max Power, 7500375 ,Corresponding Speed, 9.5N.M Torque. CDI Ignition System, 4 Speed Manual Clutch,1N234 Gear, delivers an impressive surge of strength and control to the vehicle.
  • Premium Materials & Excellent PerformanceThe 140cc engine kit is made of high-quality aluminum alloy and cast steel, sturdy and durable. The outside of the cylinder is covered with metal sheets that release the heat generated by the engine directly into the air. It has strong adaptability to environmental changes, fast startup, strong heat dissipation, and is suitable for long-term use.
  • Applicable models140cc pit bike engine for HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 /ST 90K1 / CS 90 / SL 90 / ZB 50 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2.
  • Widely Used140cc engine is widely used in motorcycles, bicycles, models, skateboards, etc. It has engines and accessories with stable performance, strong power, long life, and other excellent qualities. And the complete accessories allow you to complete installation and start using it in a short period of time.
  • Package includes1*140CC Engine, 1*Kick Starter Lever, 1*Gear Shift Lever, 1*Sprocket Cover, 1*Washer, 2*Gaskets, 1*Carburetor, 1*CDI, 1*Intake Manifold, 4*Screws.

Description

Description: Material: Aluminium Alloy, Cast Steel Type: Single-cylinder, Horizontal, Four-stroke Gear: 1N234 Ignition: CDI Displacement: 140cc Bore x Stroke: 55 59mm/2.22.3in 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 Package Included: 1140CC Engine 1Kick Starter Lever 1Gear Shift Lever 1Sprocket Cover 1Washer 2Gaskets 1Carburetor 1CDI 1Intake Manifold 4Screws Applicable Models: 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 /

Manufacturer: ‎Ebikestar


Brand: ‎Ebikestar


Model: ‎140cc pit bike engine


Item model number: ‎140cc engine


Exterior: ‎Painted


Manufacturer Part Number: ‎140cc


Date First Available: April 1, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 17 – May 22

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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Top Amazon Reviews

    • Easy to install
The media could not be loaded. I bought this as a replacement from my ssr 125 TR, was very easy to install, was able to hook it up to the previous wiring by connecting three wires and the cdi box. The bike started up right away with no issues after I connected everything. only cons I have is that it is difficult to find nuetral, the gearbox can be very stiff and stubborn when trying to do so, the 1-0-2-3-4 transmission is less efficient than the 0-1-2-3-4 gearboxes on my other ssr pitbikes, other complaint i have is the very stiff clutch, the lever requires alot of pressure to pull back and makes it difficult to use only two fingers but i am hoping the spring will become more flexible over time. Overall I am satisfied with the engine and dont think i would have found a better one for this price, I will update this review if any major issues come up. ... show more
Reviewed in the United States on November 3, 2025 by Corey Stich
    • Good til it wasn’t
Initially very impressed. Tons of power but after 12 hrs of use it internally broke and the trans would lock up when tipped left.
Reviewed in the United States on December 10, 2025 by Rocky mesler
    • Great engine… plenty of power and speed but neutral is hard to find.
I was leery about buying this engine but I was super impressed. I mounted this on a Kayo 125 TT frame and all holes lined up. I did end up putting on a different carb so I could connect it to the air filter that is mounted on the frame. Neutral is hard to find which is why I gave it 4 stars. The engine started on the first kick and has plenty of power and speed. I am going to purchase an oil cooler because the engine gets very hot. ... show more
Reviewed in the United States on July 5, 2025 by Phillip Kryjeski
    • Cost
Runs strong and smooth. Kicked over the third kick
Reviewed in the United States on January 3, 2026 by Justin duffey
    • Damaged/ false advertisement
Review Image by Austin Austin
Review Image by Austin Austin
Only reason it’s not 1 star is because it actually ran. Out of box the head and cam gear cover were cracked. The transmission is hard to shift and will go into gear randomly when kickstarting it. Also not sure if it’s even 140cc. It’s stamped 140cc on the cylinder so I was just gonna throw a head I had lying around on it but the piston is like 1mm smaller and the cylinder is 1/4 in shorter then the stock 140cc cylinder that came on my bike. ... show more
Reviewed in the United States on August 8, 2025 by Austin Austin
    • Great fit for Apollo Db x16 💯
Review Image by Austin Austin
Review Image by Austin Austin
Review Image by Austin Austin
Review Image by Austin Austin
The media could not be loaded. This engine is fantastic. No oil leaks whatsoever out of the box and it lined up just perfectly with the motor mounts on the frame of my Apollo, 125. It started first kick after I got done building the bike and runs near perfect. I just need to adjust the air fuel mixture screw on my Mikuni VM22 carb. Super stoked to ride this thing around after I break it in. ... show more
Reviewed in the United States on August 16, 2025 by Austin Austin
    • It's alright enough
Review Image by Adrian Adrian
Shifting the transmission kind of sucks and you have to be in neutral to kick it also the clutch slips when you give it a firm kick but I think I can open it up and adjust it. But it was $300
Reviewed in the United States on August 12, 2025 by Adrian Adrian
    • Impressed
This is the third time I've ordered one of these for my bikes. Different bikes of course, and I will continue to buy them if I ever need another! Lots of power, reliable and good quality! Can't beat the price!
Reviewed in the United States on June 30, 2025 by Rocky Hatch

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