So if my compression is 125, does that mean the top end might still be alright? The reason I thought it was the topend is because when I get on the throttle is bogs down, like its getting too much gas. It also puts out a little more smoke then my buddies 2 strokes do. Could this be a carb problem? I took my bike to a shop a month ago, and they played with the carb, and replaced the o ring gasket, but when I start the bike I see smoke coming out of the cyl. So im thinkiking they didnt replace the ring, or didnt do a good job.