Kimpex - External Ignition Coil for Yamaha (01-143-51) Options:01-143-51 Two diameters provide you with

Two diameters provide you with the ability to tailor a tire choice to your specific riding requirements

Optimum stress relief for helmet and upper body

and features extensive race-derived features

Capable of handling continual temperatures up to 850°F

""non-slip"" zones offer transmission of high forces without loss

Kimpex - External Ignition Coil for Yamaha (01-143-51) Options:01-143-51 Two diameters provide you withYou must re install your OEM spark plug cap(s). Once your OEM spark plug cap(s) are re installed, our part becomes a plug and play unit, direct fit, and easy to install. All products shipped are tested. Ready to use, without configuration and easy to install. One year limited warranty.