So I just got a 1982 Yamaha Chappy, the 50cc one I believe, but it had been sitting in the back of a garage for many years and it no longer has a key for the ignition. So I hop on ebay and start looking but every new switch I find has 5 wires not four like the one that is on my bike. What is the different and will this work on my bike? If you need more info I can post it.

Also I am not exactly sure what all its going to need to get it running so a kind of check list would be nice. I know it'll need a battery, gas, new spark plug, and a lot of wires. Most of them got eaten. Anything else?

Thanks!

A decent auto locksmith will be able to cut you a key.

You will need to prove ownership.