1Wide Application: Ignition coil harness kit is fit for 50cc, 70cc, 110cc, 125cc, 4 Stroke Dirt Bikes (Kick Start Only), and is replacement for Lifan engine and replacement for Zongshen engine. 2High Efficiency: The Cdi ignition coil harness kit provides more spark energy, thus improving ignition efficiency and ensuring proper engine operation. 3Improved Engine Performance: By improving ignition efficiency and combustion efficiency, magneto spark plug rebuild kit improves the power output of the engine, increasing horsepower and thus the performance of the vehicle. 4Reliability and Durability: Thanks to the use of high class materials, the kit provides more reliable and long lasting performance, resistant to harsh working environments and high temperatures. 5Ideal Replacement: If your vehicle fails to spark, this kit will replace all your old parts to help you spark up again and start again.