Started my boat for the first time this season. Last year it would idle rough and die all the time. Not good when your trying to dock it! I took it to the local marina last year several times, they didn`t fix it. I thought I would install a new power pack this season and see if that fixes it. When I tried starting it the starter wouldn`t stop turning even when I turned the key off. I started running around like a mad man looking for a wrench to unhook the battery. The starter stopped on it`s own. I thought maybe it was a fluke, maybe starter soleniod stuck, first time starting this year and all. I cranked it again, it started, seems like it was running good. Too cold to take it off the trailer and test drive, will wait till weather gets warmer. I turned the key off and it just kept running. Pulled the kill switch still kept running. Had to push in on key to kill it with VRO pump. It`s a 1986 90 h.p. Johnson. Did I get a bad power pack? Do I have a bad ignition switch? Do I have a bad ground somewhere?