I just finished rebuilding my 1995 650 rxl. I blew out a piston skirt last year and decided to bore out all 3 cylinders .20 over with new pistons and rings. After assembling the motor, my son pulled it over and noticed that it was quite a bit harder to pull over. It doesn't feel like anything is sticking or stuck. I oiled everything down real good before assembling it and put a small amount of Polaris injection oil in each cylinder. Will going .20 over incrrease the compression that much? I'm going to take a compression test tonight when I get home. It just makes me a little nervous that it is that much more compression or is that much harder to pull over. The pistons, rings and cylinders could have been real worn before, but I'm not sure. Anyone have any ideas? Thanks in advance for any comments or help.