GY6 125CC Water Cooled 1P52FMI Brand New Scooter Engine
|
Model |
1P50QMG |
1P52QMI |
1P57QMJ |
|
Classify |
GY6 100CC |
GY6 125CC |
GY6 150CC |
|
Cylinder Diameter |
50.0 |
52.4 |
57.4 |
|
Piston Stroke |
49.0 |
57.8 |
57.8 |
|
Displacement |
97.2 |
124.6 |
149.6 |
|
Rated Power & Corresponding Speed |
4.1/7000 |
5.1/7000 |
6.0/7000 |
|
Max Net Power & Corresponding Speed |
4.3/7500 |
5.3/7500 |
6.2/7500 |
|
Max Torque & Corresponding Speed |
5.6/6000 |
7.3/6500 |
8.5/6500 |
|
Minimum Stable Unladen Speed |
1700±100 |
1700±100 |
1700±100 |
|
Cooling Method |
Forced air cooling |
Forced air cooling |
Forced air cooling |
|
Package Dimensions |
670*360*300 |
670*360*300 |
670*360*300 |
|
Net Weight |
26.5KG |
26.5KG |
26.5KG |
|
Application |
Scooter |
Scooter |
Scooter |
|
Others |
Long case |
Long case |
Long case |


Product
The GY6 125cc engine is a globally recognized and highly versatile single-cylinder, four-stroke power unit, widely manufactured for the scooter market. Renowned for its exceptional durability, simple maintenance, and cost-effectiveness, it has become the dominant and most trusted engine platform for 125cc(Model 1P52FMI Engine) class scooters worldwide. Its mature design ensures reliable performance for daily commuting, delivery services, and commercial applications.
Key Features & Technical Specifications
Reliable & Robust Design: Features a single-cylinder, SOHC (Single Overhead Camshaft) four-stroke architecture with a forced air-cooling system. Its over-square bore/stroke ratio (52.4mm x 57.8mm) is optimized for smooth torque delivery in stop-and-go city riding.
Balanced Performance: Delivers a solid balance of power and fuel efficiency. The engine typically produces up to 6.2 kW (8.4 hp) @ 7500 rpm, providing ample acceleration and a stable top speed for urban environments.
Ultra-Low Maintenance: Engineered for simplicity. It utilizes a reliable C.D.I. electronic ignition system and a durable CVT (Continuously Variable Transmission) for smooth, automatic operation. The pressure-splash lubrication system is highly resilient.
Exceptional Compatibility & Parts Availability: As the most common scooter brand new gy6 engine platform, replacement parts, performance upgrades, and service expertise are universally available at a low cost, minimizing downtime and ownership expenses.


Primary Applications & Advantages
This engine is the ideal power source for:
- Commuter & Urban Scooters: Offers dependable daily transportation with low operating costs.
- Light Commercial & Delivery Vehicles: Proven toughness for high-mileage, stop-start use cases.
- Aftermarket & Replacement Market: The standard choice for repairing or repowering a wide range of scooter models.
Competitive Advantages:
- Proven Longevity: A decades-old design refined for maximum service life.
- Unmatched Parts Ecosystem: Thousands of affordable OEM and aftermarket components worldwide.
- Ease of Service: Simple mechanical design allows for repairs with common tools.
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