"Catostrophic failure "Broke a valve on ncy racing head  By  geh3333 (Read 771 times)

That was awhile back, I found that when I blew the first one it slightly bent the piston rod and therefore every top end I put on after blew pretty quick , lol. I replace the whole top end everytime , just not the crankshaft. I got the 232cc started up , I just have to do a few small things and I can take it for a ride. I even blew a 180cc not long at the end of last season. I put a damn crankcase breather tube on and at the dipstick and blew every drop of oil out and burned the rings up, lol. It was running really good too. Def never use that breather for riding only short racing , lol.