Attempted to do a valve adjustment this morning. Took the stator cover off, turned the crank possition until the left intake valve opened and closed and and attemped to turn until it stops at the L possition. It has a tendency to jump past the L possition. Even tried taking the spark plugs out to try and help this problem. I did'nt want to turn the crank bolt clockwise to retian the L possition. I know i dealt with the same thing when I was trying to adjust the point gap. Any ideas? KZ305