125CC 4 Stroke Engine Motor, Semi-Auto ATV Motor Engine Kit, Manual Transmission with Reverse, Air-Cooled Electric Start Motor Replacement Kit for ATV Go-Kart Dirt Bike

Description：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.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, Semi-AutoDisplacement: 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 Content:1×ATV Motor Engine1×Gearshift Lever1×Chain Cover1×Intake Manifold2×Intake GasketsAll Accessories for Assembly

• 【Powerful Performance】 - This bicycle engine kit delivers a robust 7.64 horsepower with a 125cc displacement and a maximum RPM of 7,500, providing ample power to ensure a smooth and powerful ride
• 【Efficient Cooling】 - This motorized bike kit features an air-cooling system that quickly reduces engine temperature, effectively preventing overheating and ensuring a smooth, long-lasting ride
• 【Adjustable Speed】 - The 4-speed manual transmission offers precise gear shifting control, helping you easily adapt to various road conditions and ensuring a comfortable riding experience
• 【Easy Installation】 - Our 125cc engine comes pre-installed; you only need to spend a little time and effort installing the remaining components to enjoy a sense of accomplishment!
• 【Thoughtful Design】 - The oil filter removes solid impurities from the oil, significantly reducing wear and extending the engine’s lifespan. The shift shaft allows you to adjust speed to suit different riding scenarios. The shock-absorbing mounting holes enable the installation of shock absorbers to reduce vibrations during travel, thereby enhancing riding comfort