I've just purchased a used 1992 Larson with a 3.0L LX mercruiser and there was no starter in it. I bought one with an 11 tooth gear but it would not engage the flywheel. I could see where the gear was contacting the inside surface if the flywheel but not 'meshing'. Will a 9 tooth solve the problem? I benched the starter and the gear fully engaged so that is not the problem. Thanks.