Here's the latest update....
Spoke with marine mechanic about my engine stalling, backfiring problem
and he thought 'ignition problem'. This is the same marine tech who performed Carb rebuild last July to supposedly correct this issue.
The Carb rebuild was definitely needed, however never really corrected the initial problem.
I personally don't think it's a engine fuel problem, because of the 'back-firing'.
I don't think fuel starvation would cause this type of behavior? A bad fuel pump, would stop fuel delivery, but I don't believe would cause 'back-firing'
Maybe someone can comment on this !
Mechanic said bring boat back to him and he'll work with me to correct.
Now thinking he'll replace Distributor Cap and Rotor. He has had several boats come into shop recently with same symptoms, and after checking
Distributor cap and Rotor, found corrosion in all cases.
I have never replaced same myself, and the second owner. Have had boat
3 seasons, but only put maybe 100 hrs on boat. Not sure when previous owner replaced these parts before or ever ? Could potentially be the culprit for this issue, but bad Coil could also be the problem. Right now it's
basically the process of elimination, starting with the least expensive items first, and working up from there !
'2BlackDogs' suggested checking the ignition wires in darkness and that if the ignit. wires, Coil, etc were arcing this would definitely be obvious, and provide a light-show ! Well, tonight in complete darkness, I mean I couldn't see my hand in front of my face, I started up the engine, and could not see any spark arcing coming from ignition wires, Distributor, or Coil.
Nada, zip, nothing ! If anything was spark/arcing it was not visible.
Will keep Forum informaed about progress. IT WILL BE FIXED !
But my wallet may be empty........
Bigdog