2004 Yamaha 225 4 Stroke

[SCONOWALL]

I have a Pursuit 3370 Offshore with above engines with 480 hours. Sunday it was 101 degrees on the water. Suddenly as I throttled back from 4000 rpm's, the starboard engine died as did all electronic gages and functions associated with it. Later, the gages came on and I was able to start the engine with all functions. Shortly thereafter it all died again. Then it all came back on and stayed on till I was docked. This has never happened before. Can anyone comment on what is the cause and where to begin troubleshooting.

 

[rodbolt]

Re: 2004 Yamaha 225 4 Stroke

start with the battery terminal connections and head aft.
if your guages lost power as well it indicates a loss of 12V.

 

[seahorse5]

Re: 2004 Yamaha 225 4 Stroke

A common problem with those symptoms is improper fastening of the B+ and ground cables at the engine. Remove the cables- first disconnect the battery- and look for arc marks and/or burned plastic on the terminal and cable ends.