I have two that have both been giving me trouble for several years. I've gone through the basics (plugs, wires, clean fuel, clean filter) and they don't like to start once warm. I'm trying to diagnose the problem to figure out what parts I might need to fix 'em. For sure I do need a push button for the tether and a starter - what do you need for those? I'm open to suggestions for what to check and I will probably start a separate thread to troubl shoot these.