I joined 5 years ago when I first got interested. Just bought and built my kit last year. Ripped the engine apart half dozen times or better. Fully helicoiled all studs on engine. Worked as much weight out of they piston as possible and match ported everything. also have a different head as the original blew though a casting pinhole in the plug threads. NGK B6hs plug and boot. Im on my third or so magneto and Cdi. More wrenching than riding, but now I can pass cars or even get a speeding ticket. I love it!