Product: ZXTDR 125cc Engine 4 Stroke Motor Semi-Auto for Honda XR50 CRF50 XR CRF 50 70 SDG SSR 110 CT70 ST70 Dirt Pit Bike Motorcycle
Brand: ZXTDR
Specifications:Displacement: 125ccType: Horizontal, single-cylinder, 4-stroke, air-cooledCompression ratio: 9.0: 1Front sprocket   420 - 17mm - 14TTransmission: 4-speed 3 forward 1 reverse gear Bore x Stroke: 2.06" x 2.19”(52.4mm x 55.5mm) Top Engine Mount : 92mmBottom Engine Mount: 82mm Bolt to Bolt :152mm (6")Rated Power & Rotating Speed: 5.8 kw/7500r/min±375 r/minMax. Torque & Rotating Speed: 8.5 N.m/5000r/min±250 r/minIdle speed 1500 r/min±100r/minIgnition: CDI
Wiring:1. Five wires (Plug): For gear indicator2. Yellow wire: For storage battery3. Pink (or Yellow) wire: For storage battery4. Black & Red wire: For signal trigger5. Green wire: For grounding6. Blue & White: For trigger coil
This 125cc Semi-Auto Engine suitable for ATV UTV 4 Wheelers Quad bikes
Speed complete racing engine, 3 forward 1 reverse gear
Upgrade your stock 50cc to this 125cc monster, you can feel the power difference immediately
See below description for more specifications and wiring

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