Okay guys I just rebuilt my yz after I punched a hole in the oil tank and scared the cylinder. I went with a new all oem yamaha top end. I have gotten the bike all back together and everything is in spec per the manual. I have kicked and kicked and tried pop starting it and i'm getting nothing, but the header is getting warm. The bike sat about a week and a half while waitingon my parts to get here. Timing looks spot on and I didnt check valves shims because it started one kick hot or cold before. Is my thinking right with that or should i still check the valves? I have good spark and comp seems good, am I over looking anything else or anything I can try?