i can't help with the wiring... mine is pull start only and has a rotax engine. for a gas tank i used a 6 gallon marine tank. it's just held in with bungee cords. it works as a temporary measure but i will weld up an aluminum tank if i ever have a couple free hours. my hard drive died, and a friend is trying to recover my data... if he can, i'll send you a picture of my tank setup. (not allowed to upload that stuff here at work) good luck with the project
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