Chip,
My 174 was doing the same thing 2 days ago, when it died it would not even crank over until it cooled off, then it would run for another 15 to 20 minutes and do it again. I asked on here and Terry suggested I check the wire connections. I had already cleaned everything since I had just installed a new battery but went back and started cleaning again. I found some corrosion on the 'F' terminal of the start/gen and after cleaning it off (and it went from the post down to the case on the engine side of the post, hard to see)Anyways after cleaning that off and cleaning all the cables again it has not acted up since and runs better.
My 174 was doing the same thing 2 days ago, when it died it would not even crank over until it cooled off, then it would run for another 15 to 20 minutes and do it again. I asked on here and Terry suggested I check the wire connections. I had already cleaned everything since I had just installed a new battery but went back and started cleaning again. I found some corrosion on the 'F' terminal of the start/gen and after cleaning it off (and it went from the post down to the case on the engine side of the post, hard to see)Anyways after cleaning that off and cleaning all the cables again it has not acted up since and runs better.