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View Full Version : 1978 s&s dies then restarts


Mike Ingram
07-24-2013, 12:05 AM
I need some help. My s&s dies then restarts. It happened a few times two weeks ago. Then this weekend it started happening a lot. Barely got back to dock. No sputtering. Just dies.

thatsmrmastercraft
07-24-2013, 04:12 AM
What is the condition of your ignition system?
If points, when were points last replaced? Is the dwell and timing set to spec?
When were spark plugs last changed? Have you looked at them recently?
Dist. cap & rotor last changed? Any build-up of deposits on contacts? Checked all connections?
Plug wires last changed?
Is the tank full of old fuel?
When were fuel filters changed last?
Have you cleaned all battery connections? Block ground too?

johnnye23
07-24-2013, 07:09 AM
Ya what he said LOL ^^^ Always start with the basics . If you can identify if its ignition or fuel it will cut your troubleshooting in half.

Sidewinder
07-24-2013, 07:43 AM
Check all of you fuel line / fuel tank connections. I had that problem with my '79 a couple years ago. It started off loosing power and the speed would drop from mid 30's to mid 20's, but then would suddenly make power again. It happened for 5-10 minutes on the way to a friend's house. Once I got near his dock I went into neutral to put the fenders out and the boat didn't want to go into gear without quitting when it was put in gear. I paddled into the dock and left it there while we went out in his boat. Came back and did some more trouble-shooting. It was still really hard to start and would quit when it went in gear. It turns out that some of the fittings near the gas tank were slightly loose and it was sucking air.