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
<p><b>Specifications:</b></p><p>Displacement: 125cc</p><p>Type: Horizontal, single-cylinder, 4-stroke, air-cooled</p><p>Compression ratio: 9.0: 1</p><p>Front sprocket   420 - 17mm - 14T</p><p>Transmission: 4-speed 3 forward 1 reverse gear </p><p>Bore x Stroke: 2.06" x 2.19”(52.4mm x 55.5mm) </p><p>Top Engine Mount : 92mm</p><p>Bottom Engine Mount: 82mm </p><p>Bolt to Bolt :152mm (6")</p><p>Rated Power & Rotating Speed: 5.8 kw/7500r/min±375 r/min</p><p>Max. Torque & Rotating Speed: 8.5 N.m/5000r/min±250 r/min</p><p>Idle speed 1500 r/min±100r/min</p><p>Ignition: CDI</p><p><br></p><p><b>Wiring:</b></p><p>1. Five wires (Plug): For gear indicator</p><p>2. Yellow wire: For storage battery</p><p>3. Pink (or Yellow) wire: For storage battery</p><p>4. Black & Red wire: For signal trigger</p><p>5. Green wire: For grounding</p><p>6. Blue & White: For trigger coil</p>
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