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MOCHAG 125CC 4-Stroke Engine Motor Complete Kit, 4 Speed ATV Motor Engine Semi-Auto w/3 Forward Gears & 1 Reverse, 2 Valve Single Cylinder Electric Start Engine for Motorcycles Go Kart Dirt Bike ATV

Free shipping on orders over $29.99

$199.99

$ 84 .99 $84.99

In Stock

1.Size:125cc 4-stroke


  • 【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.
  • 【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. Besieds, the CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely.
  • 【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.
  • 【Closed Design】: The closed design effectively prevents dust, water, oil, etc. from entering the machine, while minimizing the need for daily maintenance as much as possible.



Product Description

125CC 4-Stroke Engine Motor Complete 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.

125CC 4-Stroke Engine Motor Complete Kit

Specification

Displacement: 125CC

Horsepower: 7.64HP

Engine Type: Single Cylinder, 4 Stroke, Horizontal

Transmission: 4-speed, Manual Gear Shift

Engine Cooling Type: Air Cooling

Ignition System: CDI (Not Included)

Max Power: 5.8Kw/h

Max Torque: 8.0N-m

Max Rotating Speed: 7500rpm

Package Included

  • 1*ATV Motor Engine
  • 1*Gearshift Lever
  • 1*Chain Cover
  • 1*Intake Manifold
  • 2*Intake Gaskets
  • All Accessories for Assembly

Strong Power

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.

125CC 4-Stroke Engine Motor Complete Kit

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.

Effective Cooling System

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.

Gearshift Shaft

Gearshift Shaft

It can control the vehicle's speed to suit different usage scenarios.

Forged Crankshaft

Forged Crankshaft

It adopts a high-quality metal design to ensure high safety and stability during operation.

Shockproof Installation Hole

Shockproof Installation Hole

It is used to install shock absorbers to reduce vibration during driving, thereby improving its driving comfort.

125CC 4-Stroke Engine Motor Complete Kit

Application

This product can be widely used in motorcycles, ATVs, go-karts, tricycles, etc, as long as the crankshaft matches.

Material Aluminium, Cast Steel
Start Mod Electric
Other Features 3 Forward Gears and 1 Reverse
Clutch Type Manual Wet Multi-Disc
1400 (1 ± 10%) R / min 1400 (1 ± 10%) R / min
Compression Ratio 8.7:1
Bore Stroke 54*54mm/2.12*2.12inch
Inlet&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 First Gear: 3.272; Second Gear: 1.938; Third Gear: 1.350; Fourth Gear: 1.043
Gasoline Type ≥ 92 #
Product Size 45*30*25cm/17.71*11.81*9.84inch

Notes

1. Professional installation is highly recommended.

2. 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.


Heather Kopf
Reviewed in the United States on January 21, 2025
Overall, I’m thrilled with this engine! It has exceeded my expectations in power, durability, and ease of use. It’s built for adventure and can tackle any challenge!
j stewart
Reviewed in the United States on May 29, 2024
so far the only issues i have are the packing of the item..it was in two boxes, however, the shifting shaft poked through both boxes...this could have led to a bent or otherwise broken item.. so far as i can tell on my initial temporary mount and start, it seems to work as intended..it smokes like crazy, but i think this would be normal considering it is new and has been rolled around in shipping...i will return and update my review after it is put into actual use if possible..1p54fmi
Courtney hood
Reviewed in the United States on May 18, 2024
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Carol Hunter
Reviewed in the United States on November 21, 2024
The cooling design with metal fins works great! I’ve pushed this engine hard, and it stays cool without needing an extra radiator. This feature really enhances its durability during extended use.
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