Feature: 1. For YMH 2stroke 15horsepower ignition coil, composed of primary coil, secondary coil and iron core. 2. When in use, charge the primary coil first, and selfinduct a voltage of 200300V in the primary coil; then generate a high voltage of 1820kV by mutual inductance with the secondary coil. 3. The magnitude of the voltage generated depends on the turns ratio of the two coils, and finally the highvoltage electricity is delivered to the spark plugs for ignition. 4. Made of premium rubber and metal material, antirust, anticorrosion and durable. 5. Original standard, direct replacement for the old or broken one. Specification: Condition: 100% New Item Type: Ignition Coil Material: Rubber + Metal Color: As picture shown Engine: 2stroke Induction Voltage: 200300V Horsepower: 15 Fitment: Fit for YMH Outboard . Package List: 1 Pair of Ignition Coil