Can this engine run if it isnt timed correctly? Recently pulled the back cover off to repair a hole and the guy helping me took it upon himself to "fix" the alignment of the arrows by moving it aprox. two teeth so the arrows would line up. (didnt tell me this untill later) Then I started having problems at idle and low rpms. cutting off. no problems at wot. but intermittently didnt want to throttle up, then the problem completely dissapears, (as soon as the wrench got on board) Then as soon as the mech. got off the boat it started doing it again.