This is a vintage GEM product, a V - pulley on the ignition side for the Yamaha KT100 V - belt style engine starter. It features a 9.5 - degree taper, which ensures smooth operation and efficient power transfer for your engine starter.

Using this starter pulley is easy. First, make sure your engine is turned off. Then, carefully install the pulley on the ignition side of the Yamaha KT100 engine. It's designed to fit well with the V - belt starter. When using, keep an eye on the operation of the engine and the pulley. If you notice any unusual noises or vibrations, stop using it immediately. For maintenance, regularly check the 9.5 - degree taper for any signs of wear or damage. Clean it gently with a soft cloth to keep it in good condition. This will help ensure long - lasting performance of the pulley and your engine.