So a couple of months ago I bought a non running 78 CX500 off craig's. It had been sitting, but after a few small things(new gas and new plugs and she was running that night) brakes, cables, fluids,ect. I was f*****g golden. For a minute. One good long ride and a few short ones and she left me stranded with no spark. After going through the useual suspects, i need a CDI. While saving up for a ignitech I figured I would do some things I was saving for winter. task 1. clean carbs easy enough (super fuzzy i can't wait to ride it when shes getting the gas she deserves). task 2. adjust valves(super tight. good. I'm not needlessly taking things apart.)then it happens. while tightening the right valve cover the second bolt starts to get a little torque... and... loose.. removed the cover, threads are in about 20 pieces. So does anyone know if a custom head will work? There seem to be more around that I could use for parts, and some other cosmetic things I'd like to swap.