125CC 4-Stroke Engine Motor Semi Auto w/Reverse Electric Start, 4 Speed ATV Quad Engine Motor Complete Kit Single Cylinder Air-Cooling Motor for 50cc 70cc 90cc 110cc ATV, Go Kart, Dirt Bike, Pit Bike

Specification:Engine Type: Single Cylinder, 4 Stroke, Horizontal, Two-stage TransmissionOther Features: 3 Forward Gears and 1 ReverseMaterial: Aluminium, Cast SteelEngine Cooling Type: Air CoolingIgnition System: CDI (Not Included)Start Mode: Kick-starter; ElectricClutch Type: Manual Wet Multi-DiscTransmission: 4-speed, Manual Gear ShiftDisplacement: 125CCMinimum No-load Stable Speed: 1400 (1 ± 10%) R / minCompression Ratio: 8.7:1Bore Stroke: 54*54mm/2.12*2.12inchMax Power: 5.8Kw/hMax Torque: 8.0N-mMax Rotating Speed: 7500rpmHorsepower: 7.64HPAir Inlet and Exhaust Valve Clearance: 0.05 ~ 0.07 mm (Cold State)Min Fuel Consumption: ≤367g/kW.hSpark Plug: A7TC Carburetor Type: PZ19 (Not Included)Min Stable Idle Speed: 1500r/min±150r/minPrimary Reduction Ratio: 3.722Transmission Ratio of Each Gear: First Gear: 3.272; Second Gear: 1.938; Third Gear: 1.350; Fourth Gear: 1.043Lubricant Capacity: 900ml/0.23 GallonsLubricant Type: SL10W/40 (Not Included)Crankshaft Diameter: 1.5cm/0.59inch Crankshaft Length: 0.4cm/0.15inch Gasoline Type: ≥ 92 # Gross Weight: 19.45kg/42.87lbsNet Weight: 18.15kg/40.01lbsProduct Size: 45*30*25cm/17.71*11.81*9.84inchPackage Size: 51*39*33.5cm/20.07*15.35*13.18inchPackage Included: 1*ATV Motor Engine1*Gearshift Lever1*Chain Cover1*Intake Manifold2*Intake GasketsAll Accessories for AssemblyNotes: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.

• 【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 4-Stroke Auto engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions. This product can be widely used in motorcycles, ATVs, go-karts, tricycles, etc, as long as the crankshaft matches.
• 【Effective Cooling System】By adopting an air cooling system, the temperature of the 4 speed ATV Quad engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.
• 【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.
• 【Easy to Operate/Install】The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely. 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!