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4-Stroke 125CC Motor Engine Pit Dirt Bike ATV Quad Kit Manual Clutch Single Cylinder CDI Air Cooled for CRF50 CRF70 XR50 XR70 Z50 Z50R

  • Based on 24 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Fly Hero

Arrives May 26 – May 30
Order within 16 hours and 13 minutes
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Features

  • HIGH PERFORMANCEA high performance engine, perfect for those comfortable with faster engines and have a desire to get up and go; Wide range of applications, can be applied for bicycles, models, skateboards and so on. Excellent quality, great bike engine motor accessories.
  • MAIN PARAMETER 1Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by hand; Bore x Stroke: 52.4mm x 55.5mm (2.06'' x 2.2''); Displacement: 119.7ml; Compression Ratio: 9.0:1; Max Power: 6.5 kw/7500r/min 375r/min; Rated Power: 5.6 kw/7500r/min 375r/min; Max Torque: 8.0 Nm/5000r/min 250r/min; Idle Speed: 1500r/min 100r/min; Min Fuel Consumption: 367g/kw.h; Ignition System: CDI; Start Mode: Kick-starter.
  • MAIN PARAMETER 2Spark Plug: A7TC; Clutch: Wet multi-plate; Transmission: 4-speed, Manual clutch, 1 down 3 up; Carburetor Type: PZ16J; Primary Reduction Ratio: 3.722; Gear Ratio: 2.833/ 1.706/ 1.238/ 0.958; Lubricant Capacity: 900ml; Lubricant: SAE15W/40-SE, 4-stroke gasoline engine oil; Package Size: 19.7'' x 14.6'' x 13''; Package Weight: 46lbs.
  • FITMENTFor 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.
  • PACKAGE CONTENTS1 x 125CC 1P52FMI ENGINE, 1 x Kick Starter Lever, 1 x Gear Shift Lever, 1 x Carburetor, 1 x Intake Manifold, 1 x CDI, 2 x Intake Gaskets.

Description

Fits (For the reference): For 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 / Specifications: Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by hand Bore×Stroke: 52.4mm × 55.5mm Displacement: 119.7ml Compression Ratio: 9.0:1 Max Power: 6.5 kw/7500r/min ± 375r/min Rated Power: 5.6 kw/7500r/min ± 375r/min Max Torque: 8.0 Nm/5000r/min ± 250r/min Idle Speed: 1500r/min ± 100r/min Min Fuel Consumption: ≤367g/kw.h Ignition System: CDI Start Mode: Kick-starter Spark Plug: A7TC Clutch: Wet multi-plate Transmission: 4-speed, Manual clutch,1 down 3 up Carburetor Type: PZ16J Primary Reduction Ratio: 3.722 Gear Ratio: 2.833/ 1.706/ 1.238/ 0.958 Lubricant Capacity: 900ml Lubricant: SAE15W/40-SE, 4-stroke gasoline engine oil Package Size: 50cm x 37cm x 33cm (19.7'' x 14.6'' x 13'') Package Weight: 20.85kg / 46lbs Package includes: 1 x 125CC 1P52FMI ENGINE 1 x Kick Starter Lever 1 x Gear Shift Lever 1 x Carburetor 1 x Intake Manifold 1 x CDI 2 x Intake Gaskets


Manufacturer: ‎FlyHero


Brand: ‎DNYSYSJ


Model: ‎CRF50 125CC Engine


Item model number: ‎125cc 4-Stroke Engine Motor


Exterior: ‎Polished


Manufacturer Part Number: ‎AC-YCZYQ


Date First Available: September 12, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 26 – May 30

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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Top Amazon Reviews


  • Good motor but..
The media could not be loaded. Good motor but.. the carb is came with is junk. Had to order a deferent one. When I received the motor In the box it was covered in oil and the box was soaked. Other than that the motor runs and rides great!
Reviewed in the United States on August 25, 2023 by brandon

  • Strong motor
Engine fired right up and sound like it’s healthy, didn’t use carburetor that came with it but I’m sure is good quality aswell
Reviewed in the United States on August 6, 2023 by Joseph

  • Very impressive
It’s got a lot of power and has been very reliable first start up it started second kit
Reviewed in the United States on July 29, 2023 by Dakota Mattingly

  • Great product
Halls ass
Reviewed in the United States on May 11, 2023 by Nicholus

  • Initially couldn’t get it to start changed carb and it runs great!
I had problems with the initial carb but it runs great now! Awesome product not worried about a cheap carb I ended up just replacing it! Now it runs great
Reviewed in the United States on February 19, 2023 by Yaylor

  • Disappointed
Ran pretty good for an hour or so then 3rd gear blew out
Reviewed in the United States on May 10, 2023 by Bruce Manly

  • Good customer service
Very happy
Reviewed in the United States on March 31, 2023 by Levi thibodeaux

  • No good
Couldn't get spark. leak oil out of the sparkplug hole after just sitting for two days without even getting it to spark. And cost half the price of the engine just to ship it back. Junk
Reviewed in the United States on June 12, 2023 by kevin taylor

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