Hey fellow bike junkies ,Vinny G !I have xt 250 I bought new ,yea I know I,m old ,any way bike has sat for a few years ran good when I parked it rebuild to carbs ,Ibike has low compression ,I,m think maybe a stuck ring or valve ,bike has a mega cycle cams ,my friend Tex Peel was building Harley 750´s for Scotty Parker at the time he sent the cam,s to mega cycle and installed heavier valve springs white brother,s pipe and a dyno jet carb kit ,bike was fast ,ran it ran ,any ideas ?