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125cc 4 Stroke ATV Engine Motor Kit, Single Cylinder Semi Auto Transmission W/Reverse Electric Start Engine Replacement Kit for 125cc All Sizes of Karts and ATV | Repair and Installation Guide

Original price was: $189.99.Current price is: $176.00.

6 ratingsSource: Amazon
SKU: C-B0DCZB3332 Category:

Review this component in the context of the repair, installation access, nearby parts, and the result the job is intended to achieve.

  • Great Power: It has horsepower up to 7.64HP/7500±500Rpm (5.7KW/7500±500Rpm) and maximum torque up to 8.0N.m/5500±500rpm. It is a motor with great output power
  • Fits (For the reference): 125cc all size ATVs 125cc all size Go Karts. Compatible Models include: Blade, Kinroad, Roketa, KPX, SUNL, Aimex, Alpha sports, BMS, BMX, Cool Sports, Baja, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, KMD, Kymco, Lance, Linhai, NST, Redcat, Roketa, Tank, X-Treme, Yamati, Coolster, Terminator, Lynx etc
  • Efficient and Durable: The 125cc 4-stroke engine is made of an aluminum cylinder head and iron cylinder block, which is more durable. High power enables high-speed operation of the motor and ensures high efficiency.
  • Includes: This 4-stroke air-cooled engine with reverse semi-automatic transmission has electric start. The kit comes with intake pipe, drive sprocket, sprocket cover and spark plugs, but without carburetor, battery, CDI, voltage regulator, ignition coil, etc
  • Heat Dissipation Design: The outside of the cylinder is covered with metal fins. When the cooling fan blows air through the fins, the heat generated by the engine is released directly into the air

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  • Confirm the part number, position, dimensions, and connector details shown on this page.
  • Compare the listing with the part currently installed on your vehicle.

Description

Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.

Product Description

PRODUCT DESCRIPTION

125cc 4 Stroke ATV Engine Motor Kit, Single Cylinder Semi Auto Transmission W/Reverse Electric Start Engine Replacement Kit

If you are a driving enthusiast who loves freedom and pursues speed and passion, our 4-stroke ATV motor engine will be your ideal choice. Its excellent performance and stable power output make your driving more enjoyable and comfortable. Buying this 4-stroke ATV motor engine means choosing a high-quality, high-performance, and safe driving experience.

PRODUCT HIGHLIGHTS

Strong Power

This ATV motor engine boasts a robust 7.64HP horsepower, a displacement of 125cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.

Durable and Sturdy

The engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions.

Effective Cooling System

By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.

Application

  • The closed design effectively prevents dust, water, oil, etc. from entering the machine, while minimizing the need for daily maintenance as much as possible.
  • The different wires have different colors, thus easily distinguishing and connecting them without confusion.
  • This product can be widely used in motorcycles, ATVs, go-karts, tricycles, etc, as long as the crankshaft matches.

Key Features

Easy to Install

Our ATV motor engine is pre-installed and you only need to spend a little time and effort to complete the remaining parts, enjoying a sense of achievement!

Easy to Operate

The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely

Adjustable Speed

Its 4-speed manual transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. It makes your driving experience more exciting under different road conditions.

Lubricating Oil Filter

  • Lubricating Oil Filter can help filter solid stains from lubricating oil, largely reducing wear and prolonging the engine service life.
  • Gearshift Shaft can control the vehicle’s speed to suit different usage scenarios.
  • Shockproof Installation Hole is used to install shock absorbers to reduce vibration during driving, thereby improving its driving comfort.
  • Forged Crankshaft adopts a high-quality metal design to ensure high safety and stability during operation.

Specification

  • Engine Type: Single Cylinder, 4 Stroke, Horizontal, Two-stage Transmission;Material: Aluminium, Cast Steel
  • Other Features: 3 Forward Gears and 1 Reverse
  • Engine Cooling Type: Air Cooling
  • Ignition System: CDI (Not Included)
  • Start Mode: Kick-starter; Electric
  • Clutch Type: Manual Wet Multi-Disc
  • Transmission: 4-speed, Manual Gear Shift
  • Displacement: 125CC
  • Minimum No-load Stable Speed: 1400 (1 ± 10%) R / min
  • Compression Ratio: 8.7:1
  • Bore Stroke: 54*54mm/2.12*2.12inch
  • Max Power: 5.8Kw/h
  • Max Torque: 8.0N-m
  • Max Rotating Speed: 7500rpm
  • Horsepower: 7.64HP
  • Air Inlet and Exhaust Valve Clearance: 0.05 ~ 0.07 mm (Cold State)
  • Min Fuel Consumption: ≤367g/kW.h
  • Spark Plug: A7TC
  • Carburetor Type: PZ19 (Not Included)
  • Min Stable Idle Speed: 1500r/min±150r/min
  • Primary Reduction Ratio: 3.722
  • Transmission Ratio of Each Gear: First Gear: 3.272; Second Gear: 1.938; Third Gear: 1.350; Fourth Gear: 1.043
  • Lubricant Capacity: 900ml/0.23 Gallons
  • Lubricant Type: SL10W/40 (Not Included)
  • Crankshaft Diameter: 1.5cm/0.59inch
  • Crankshaft Length: 0.4cm/0.15inch
  • Gasoline Type: ≥ 92 #
  • Product Size: 45*30*25cm/17.71*11.81*9.84inch
  • Gross Weight: 19.45kg/42.87lbs; Net Weight: 18.15kg/40.01lbs

Product facts

Specifications

Canonical product
MP-US-B0DCZB3332
Source product ID
B0DCZB3332
Category
Motorcycle & Atv / Parts / Engine / Rebuild Kits
Available images
9

Vehicle information

Available fitment details

Listing compatibility notes

  • It is a motor with great output power Fits (For the reference): 125cc all size ATVs 125cc all size Go Karts.

Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.

Repair scenarios, installation, companion parts, and use outcomes

Buying guidance

Quick decision

Review this rebuild kits in the context of the repair and the surrounding components.

Repair scenario

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  • Inspect nearby connectors, fasteners, and mating surfaces before installation.

Installation notes

  • Use the listing instructions when present and follow the vehicle service procedure.
  • Professional installation may be appropriate when the repair requires special tools or calibration.

Companion parts

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  • Use the service procedure and the visible package contents to identify any additional parts or tools required.

Before you buy

  • Compare the listing title, photos, package contents, and specifications with the part being replaced.
  • Confirm vehicle compatibility and installation requirements before ordering.

Customer feedback

Ratings and written reviews

3.4 / 5 6 source ratings

Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.

4 written reviews
5 stars 2
4 stars 0
3 stars 0
2 stars 1
1 star 1

4 reviews for 125cc 4 Stroke ATV Engine Motor Kit, Single Cylinder Semi Auto Transmission W/Reverse Electric Start Engine Replacement Kit for 125cc All Sizes of Karts and ATV | Repair and Installation Guide

  1. Imported from AmazonSource context: I used this motor on my go cart and fit perfectly Super fast, quiet, easy to install. and easy to start. Starts every time with no problem Quality was perfect. Arrived on time. Was everything as described

    Justin Woolard

    I used this motor on my go cart and fit perfectly Super fast, quiet, easy to install. and easy to start. Starts every time with no problem Quality was perfect. Arrived on time. Was everything as described

  2. Imported from AmazonSource context: Verified Purchase

    Jorge rivera

    The motor works just fine but the cover is crack costumer service is terrible from this company returning this oneam not buying from them never again

  3. Imported from AmazonSource context: Verified Purchase

    Customer666

    Nothing to distinguish which wires are which, has a wire set without a plug, and a wireset with a plug, but no way to tell what goes to what, bought a similar design engine from another company and had it fired up in 5 minutes, I’ve been fighting this one for a couple days trying to get it to have spark when cranking. I’d probably suggest a different option.

  4. Imported from AmazonSource context: .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } This semi-automatic engine is excellent! It makes shifting gears easy and intuitive. Highly recommended!

    Blksheep

    This semi-automatic engine is excellent! It makes shifting gears easy and intuitive. Highly recommended!

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