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125cc 4 Stroke Engine Motor 4 Speed ATV Engine Motor Single Cylinder Air Cooling Pit Bike Engine CDI Go Kart Engine Kit for CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike

  • Based on 4 reviews
Condition: New
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Availability: In Stock.
Fulfilled by HoTui

Arrives Jul 20 – Jul 24
Order within 4 hours and 52 minutes
Available payment plans shown during checkout

Features

  • [Improve the Riding Experience] The 125cc 4-stroke engine features high power, high rpm and high torque, which can significantly improve the riding experience and work efficiency.
  • [Reduce the Frequency of Refueling] 30.43 ounces of fuel tank capacity ensures long time working demand and reduces the trouble of frequent refueling.
  • [Efficient Air-cooling System] Adopting heat dissipation structure and air-cooling system effectively prevents the engine from overheating, reduces the failure rate and prolongs the service life.
  • [Low Fuel Consumption Design] The high-performance carburetor design makes the structure simple and easy to maintain, while the CDI ignition system reduces cost and improves ignition reliability.
  • [Compatible Models] This four-stroke off-road engine is suitable for a wide range of models, such as CRF50, CRF70, XR50, etc., providing a wide range of choices for users with different needs.

Description

ApplicationIt fits for CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Pass / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50.SpecificationsColor: Black, SilverAssembly Required: YesEngine Type: 4-Stroke, Single CylinderCooling System: Air CoolingEngine Displacement: 125ccTransmission: 4-speed, Manual Clutch 1-N-2-3-4Clutch: Wet Multi-disc ClutchLubricant: SAE 15W/40-SE, Four- stroke Gasoline Engine OilCompression Ratio: 9.0:1BoreStroke: 52.455.5 mm/2.062.18inMaximum Power: 6.5KW/7500 rpm ± 375 rpmRated Power: 5.6KW/7500 rpm ± 375 rpmMax. Torque: 8.0 Nm/5000 rpm ± 250 rpmIdle Speed: 1500 rpm ± 100 rpmMin. Fuel Consumption: ≤367g/kw.hIgnition System: CDIStarting Mode: Kick StarterSpark Plug: A7TCCarburetor Type: PZ22 Primary Reduction Ratio: 3.722Lubricant Capacity: 900ml/30.43ozItem Weight: 19.1kg/42.1lbsProduct Size: 442922cm/17.3211.48.66inGross Weight: 21.5kg/47.4lbsPackage Size: 483735cm/1914.614inPackage Included1 4-stroke EngineAll Accessories for Installation

Manufacturer: ‎HoTui


Brand: ‎NuBusno


Model: ‎125cc 4 Stroke Engine Motor


Item Weight: ‎47.4 pounds


Country of Origin: ‎China


Item model number: ‎ACYCZ1495


Exterior: ‎Polished


Manufacturer Part Number: ‎ACYCZ1495


Date First Available: December 11, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 20 – Jul 24

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.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Strong Performance
I installed this engine on my son’s four-wheeler, and it works flawlessly. The setup was straightforward, and the engine delivers excellent power.
Reviewed in the United States on March 14, 2025 by Rae Manganiello

  • Solid Engine
This 125CC engine is a solid choice for mini bike enthusiasts.
Reviewed in the United States on March 14, 2025 by Albert Martelli jr

  • Good
Once set up, it’s been reliable and fun to ride.
Reviewed in the United States on March 14, 2025 by Janet Cowperthwaite

  • Engine for Mini Bikes
It was easy to install and runs.
Reviewed in the United States on March 14, 2025 by Nicholas Stauter

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