125CC 4-Stroke Engine Motor Kit, Single Cylinder with Air-Cooled 4-Speed Manual Clutch Motor Engine ATV Quad Kit for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike and Go Kart

DescriptionUnleash your passion with our high-performance CRF50 125CC engine - delivering power, stability and thrilling rides. Perfect upgrade for Honda CRF50/70, XR50/70, Z50 & most mini trail bikes (verify fitment with local dealer).DetailsEfficient Cooling: Air cooling system rapidly reduces engine temperature, preventing overheating for smooth, long-lasting performance. Precise Control: 4-speed manual clutch enables accurate gear shifting to adapt to any condition, with CDI ignition for maximum energy efficiency. 4-Stroke Power: Single cylinder air-cooled engine with manual clutch operation delivers reliable performance.ApplicationFOR CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50.SpecificationsCondition: New Max Torque: 8.0 Nm/5000r/min±250r/min Idle Speed: 1500r/min±100r/min Fuel Consumption: ≤367g/kw.h Ignition: CDI Displacement: 125ccStart Mode: Kick starter Type: Single cylinder, 4-stroke with air-cooledLubrication: SAE15W/40-SE, 4-stroke gasoline engine oil Bore*Stroke: 52.4mm*55.5mmLubricant Capacity: 900ml Compression ratio: 9.0:1Transmission: 4-speed, Manual clutch Primary Reduction Ratio: 3.722Clutch: Wet multi-plate Max Power: 6.5 kW/7500r/min±375r/minGear Ratio: 2.833/1.706/1.238/0.958Rated Power: 5.6 kW/7500r/min±375r/minDisplacement: 119.7 mPackage Included1* 125CC ENGINE 1* Kick Starter Lever1* Gear Shift Lever1*Carburetor1*Intake Manifold1*CDI2*Intake GasketsNotes1.Motorcycle use only2.Minor oil stains on packaging are normal - safe to use3.Professional installation strongly recommended4.Check oil level before each ride5.First 500km: Change oil & clean filter every 300km, max speed 50km/h6.Never shift gears without releasing throttle

• ★HIGH-PERFORMANCE ENGINE: Perfect for speed enthusiasts - delivers instant power for bikes, models, skateboards & more. Premium quality motor accessory built for thrill-seekers.
• ★STRONG POWER:4-speed manual clutch delivers precise control for any terrain. 6.5kW max power at 7500rpm with 8.0Nm torque at5000rpm. Ultra-efficient ≤370g/kW.h fuel consumption. CDI ignition for reliable starts.
• ★WIDE RANGE OF APPLICATIONS:Perfectly compatible with HONDA CRF50/CRF70/XR50/XR70/Z50/Z50R/CT70 Mini Trail/Z50/Mini Trail Monkey/XL70 ST70/QA50/QR50/CL70/SL70/70 Passport/ST 90K2/ST 90K1/CS 90/SL 90/ZB 50. High-efficiency 4-stroke delivers powerful performance (6.5kW/7500r/min±375r/min) with exceptional fuel economy (≤367g/kW.h) for smooth, responsive rides.
• ★PREMIUM BUILD: High-grade aluminum cylinder head and durable iron block ensure reliable performance in all conditions for a smoother ride.
• ★ADVANCED CIRCUIT DESIGN: Clear wiring for easy installation. Efficient air-cooling maintains optimal performance. Max Torque: 8.0Nm/5000r/min±250r/min; Idle Speed: 1500r/min±100r/min - ensuring smooth, enduring operation.