My new battery just clicks and I've checked wire connections. I know my starter was getting worse over some time. Im thinking it may be the problem or the connection as I can't get at it. I decided best I pull the seat out and try. I don't see any plates on engine- What Onan is in it? Its a Mighty Mac 8b. I think mauybe 1973 but not sure. I want to order a new starter for it.