Just like i said i'm soo confused, checked the compression on the shee today and i'm a little bummed. She was pretty puny, 103 psi in the left cylinder and like 95 psi in the right cylinder. But the reason why i'm confused is it doesn't take much at all to start the thing, not first kick but it's not a hassle; the part that is confusing me is that those numbers i believe indicate rebuild time, but it runs soo good. I mean i just beat a '06 450R with a 110lbs. rider the other day no sweat, indeed i should've won with my mods but i'm 210lbs. and i pulled through every gear. (yeah, i know it could've been the rider) Anyways it's been almost two years since the last rebuild (new wiseco's, rings, bore, etc...) and i'm also like many bhq'ers who ride like they stole it. Well i was wondering what i should do, i was going to get a gorr port for a little christmas present, but i'm not sure. Do you think this might be fixed with some new rings, or am i gonna have to get new pistons? Also where is that piston size located on the piston, i know it is silly but i forgot what over bore mine was, .030 or .040. Also if someone could tell me what the piston clearance should be in the cylinder and how much ring gap i should have, yes i realize it is in the clymer's manual but i have seemed to misplaced mine. So here's the deal i'll go look for the clymer manual and you guys can give me some tips/input. thanks.