Reporting back to the Forum on test run....
Replaced 'Ignition Module Assembly' at the suggestion of a few on this forum.
Again, when I removed the original part, I was shocked to see this part
'basicall an exposed printed circuit board'. are you kidding me !
At least the new design of this part is encased in resin, totally protected from the environment or heat.
The maine engineer geniuses really blew this original design ! All those years studying at an engineering college and all that money for tuition.....
and that was the best design they could come up with..... Amazing !
I digress...... Back to the results......
Have taken boat on trilal runs now 3x, for more than 4hrs. Various levels
of speed/RPM's. NO ISSUES ! PTL !!!
Previous boat outings have produced engine caughing, backfiring, and stalling after only 20-30 min of use. Almost needed a tow a couple time, but was able to limp back to port.
Hopefully, this issue is finally resolved !
Guess I can put away my 1/2" wrentch, and thoughts about pulling the plug !
At least for the time being..... TBD..........
Oh, one last mention about Winterizing engin I'd like to get folks thoughts.
My guy who winterizes my boat, also runs a car dealership.
He just drains all headers, hoses, and any other orifices of water. He does not add anti-freeze, never has. His thoughts are, if there is no water in the engine, there is nothing to freeze ! Says he' never lost or had an engine crack as a result of this process yet ! Thoughts ?
Thanks everyone for all the advice, especially to MAXUM, who I believe
came up with the original diagnose, only through a similiar situation.
BD