I replaced my cams installed andrews e-z adjust push rods. I turned the motor over before the front cyl lifters bled down.i tried to start is (STUPID) at first it back fired I shut it right down. re adjusted the push rods then did a compression check, at first no compression in the front cyl. I waited 15 minutes and checked compression again. this time had full compression. I buttoned it up and now it starts and runs fine. i don't think i bent a valve because it runs good. Can anyone out there tell my why i did not have compression the first time? I made sure i started it many times. Can't ride it yet due to the snow. Did i get lucky and the intake lifter was just holding the intake open at first?