Item Features: Durable and convenient. Simple design and easy to use. And We will provide you with high quality products Professional Installation Is Highly Recommended! Specifications: Model:1P54FMI-K Shift Model: 1 0 2 3 4 Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by handBore×Stroke: 54×54 mm Displacement: 124 ml Compression Ratio: 9.3:1 Max Power: 5.8 kW/7000r/min±500r/min Max Torque: 8.5Nm/5000r/min±500r/min Idle Speed: 1500r/min±100r/min Min Fuel Consumption: ≤367g/kw.h Ignition System: CDI Start Mode: Kick-starter Spark Plug: A7TC .