there are the letters "f" and "t" on the fly wheel, i forget the letter it is but i know its the letter on the right side, should be lined up on a notch on the case. and there should be an "o" mark on the cam sprocket and that should be in the 9 o clock position on the cam. i also forget what the nobs that stick out on the cam are too, but i know those are supposed to be facing the motor. and also check that the valves are adjusted properly, they should be open 0.005mm, or a sheet of paper works.
its not really as hard as it seems but make sure the flywheel does not move at all.
50cc's of mayhem
