hi guys, have had a read through all the previous posts to see if any of the answers were there but couldnt find anything. dont know much about motors and i have a chrysler 75hp (couldnt find any serial number on it and is around a 1985). first thing is the starter motor spin but doesnt always spin all the way up to turn over the motor, i have to lift the starter motors cog up each time before i start it. The next thing is when it does turn the motor over it doesnt always fire up and when it does it sumtimes only runs for a couple of seconds? but then on other occasions it will start up and continue to run? Anyone have any ideas? thanks