Thanks for the help guys, I was judt really sick of nothing working, and had to vent. I did buy the bike used, but didn't pay attention to any noises when I bought it, but I'm pretty sure it's always done this. It pings when I rev it up to 1/4 throttle or so, let off, then ping, ping.... The pinging isn't consistent, sometimes it won't do it at all, sometimes it does it alot. I use premium pump gas(not sure what octane, probably 93). Never over-filled the tranny to reduce clutch noise, because, that doesn't bother me, and I'm almost positive this is coming from the cylinder or silencer. The powervalve rattles also. The bike makes a lot of odd noises, but the pinging is the only one that bothers me. Now, I wish I knew why it revs up so high when running the fuel out??? The pinging is starting to bother me less, as I'm learning to accept it, but now, another problem :(