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125cc 4 Stroke Engine Motor, Single Cylinder Air Cooling 4-Speed Motorcycle Engine with CDI Ignition System and Manual Clutch for Honda CRF50F 00-09 11-15 XR50 XR70 CRF50 CRF70 ATV Go Kart

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Availability: In Stock.
Fulfilled by NAZEAOB

Arrives Thursday, Apr 2
Order within 16 hours and 57 minutes
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Features

  • COMPATIBLE WITHFits 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
  • MAIN PARAMETERSMax Power: 6.5 kW/7500r/min375r/min; Rated Power: 5.6kW/7500r/min375r/min; Max Torque: 8.0 Nm/5000r/min250r/min; Idle Speed: 1500r/min100r/min; Min Fuel Consumption: 367g/kw.h; Type: #92 gasoline; Single cylinder, 4-stroke with air-cooled, and clutch operated by hand
  • PRECISE CONTROLThe engine's 4-speed, manual clutch transmission provides you with precise control over gear changes, allowing you to adapt to various road conditions and terrain, resulting in a more engaging and customized riding experience. Manual transmissions tend to be less expensive to manufacture and maintain than automatic transmissions, which can lead to cost savings for you
  • HIGH PERFORMANCEWide range of applications, can be applied for bicycles, models, skateboards and so on. Excellent quality, great bike engine motor accessories. The carefully calibrated PZ22 carburetor optimizes the air-fuel mixture, enhancing fuel efficiency and providing a consistent and responsive throttle response, resulting you in a smooth and enjoyable ride
  • WHAT YOU WILL GETThis engine kit comes with 1x 125cc 4 stroke engine, 1x kick starter lever, 1x gear shift lever, 1x carburetor, 1x intake manifold, 1x cdi, 2x intake gaskets are included in the package

Description

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/1914.614in Package Included1 4-stroke EngineAll Accessories for InstallationNotes1.The installation manual is not included. Professional installation is highly recommended. Please note that the applicable models are only for reference.2.Please carefully read the product label and pay attention to the safety precautions inside. Before use, please carefully check the cable, power supply, etc., and take proper protective measures to avoid potential safety hazards.3.Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.

Manufacturer: ‎NAZEAOB


Brand: ‎NAZEAOB


Model: ‎125cc engine


Item Weight: ‎42.1 pounds


Product Dimensions: ‎17.32 x 11.4 x 8.66 inches


Item model number: ‎ACZQ-145


Exterior: ‎Painted


Manufacturer Part Number: ‎ACZQ-145


Date First Available: June 24, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 2

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


  • Arrived fast and runs great
Out of the box and running on the bike in about a hour. Couldn’t ask for much more as far as quick shipping and ease of install goes.
Reviewed in the United States on January 18, 2026 by SJ LAND SERVICES

  • Highly recommended
The clear mounting points and accompanying instructions made installation very simple. So I had it installed in no time. It starts smoothly, runs steadily, and is powerful. It works perfectly. I haven't encountered any problems so far.
Reviewed in the United States on July 27, 2025 by Daniela

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