125CC Engine Motor, 4 Stroke Engine Motor 5.5KW Robust Power CDI Ignition Device Air Cooling System Single-Cylinder 7500 ± 375RPM for Go Kart ATV Quad Bike Buggy Pit Dirt Bike

SpecificationsApplicable Models: For Atomik, Pitpro, TDR, Hummer, Orion, Xmoto, Lei, Dmx, Swd, Tomahawk, Go Kart, Quad, Dirt Bike, ATV, Pit Bike, Buggy, Rocket CarFor 125cc Engine SizeCondition: NewMaterial: Iron, AluminumProcess: Die Casting, PaintingColor: SilverEngine Type: Parallel 4-Stroke Single-Cylinder EngineTransmission System: Forward-Neutral-ReverseStarting Method: Electric StartIgnition Device: CDICooling Method: Air CoolingStarter Type: Foot StartLubrication Method: Pressure/SplashFuel Type: GasolineCarburetor: PZ19Displacement: 125CCMaximum Power: 5.5KWCompression Ratio: 9:1Max. Speed: 7500±375RPMIdle Speed: 1500±100RPMMax. Torque: 8.5 N.mFront Sprocket: 420-17mm-14TFuel Tank Capacity: 900ml/0.24galAir Filter Diameter: 35mm/1.38inCylinder Diameter*Stroke: 52.4*55.5mm/2.06*2.19inTop Mounting Hole Spacing: 92mm/3.62inBottom Mounting Hole Spacing: 82mm/3.23inBolt Spacing: 152mm/5.98inWay of Use: Direct ReplacementProduct Size: 48*36*30cm/18.9*14.17*11.81inPackage Size: 50*37.5*32cm/19.69*14.76*12.6inGross Weight: 21.95kg/48.39lbsNet Weight: 21kg/46.3lbsKey FeaturesBuild to Last: It is made of high-quality iron and aluminum with die casting and paint spraying processes, which is rustproof, impact-resistant, not easy to crack, and can ensure a long service life.Robust Power: The 5.5KW high-power parallel 4-stroke single-cylinder engine has a maximum speed of 7500 ± 375RPM, coupled with a torque of 8.5N. m, allowing you to easily shuttle through various terrains.HighlightsBrand New, With High QualityStrong PowerTrouble-free InstallationExquisite CraftsmanshipDirect Replacement Long Service LifeImproving Vehicle SafetyComfortable DrivingThe Functions Corresponding to Different Colored Cords1. Five Wires (Plug): Gear Indicator2. Yellow Wire: Charging Wire4. Black & Red Wire: Battery Wire5. Green Line: Neutral WirePackage Included1 * 125CC 4 Stroke Engine MotorAll Accessories for Assembly

• 125cc 4-Stroke Power System：Horizontal single-cylinder air-cooled engine delivers 5.8kW/7500rpm max power & 8.5N·m torque，3 forward gears + neutral/reverse design enables complex terrain maneuvering with 9.0:1 compression efficiency
• Complete Pro-Grade Installation Kit：125CC engine motor includes pre-assembled wiring harness, PZ19 carburetor, 35mm air filter, chain case & gasket kit。 Bolt mounts compatible with 92mm(top)/82mm(bottom) brackets
• Simplified Wiring Architecture：Color-coded connectors: Yellow/Pink→Battery, Blue/White→Trigger Coil, Black/Red→Signal, Green→Ground. Integrated CDI ignition & 428-14T sprocket ensure plug-and-play operation
• Multi-Vehicle Compatibility：4 Stroke engine motor universal fit for ATV, Go-Karts, Dirt Bikes & Pit Bikes.Bore×Stroke: 52.4×55.5mm precisely matches aftermarket quad/buggy frames
• Professional Installation Advisory：Requires certified technician for mounting: Electrical start system demands torque calibration & gear indicator wiring expertise