So wanted to update on the over-revving issue. I had lots of clutter behind the affected engine, and I removed the supply hose for the fish tank (see pic), the speedometer sending unit since I use GPS for speed and also moved the transducer further to the right and installed the 4 blade 15p back on, that was successful as it no longer over revs. So, the clutter is a no no.
It's a good thing too because the port side engine decided to quit on me when I was out. It has been doing the sneezing at start up symptom for a while now, it also did it that day, but I managed to start it and it got me out there and then it quit starting. So, the engine that was over revving before ran great got me close to 20mph. Very smooth running motor given all the rebuilding and replacing of parts. I still have to do some adjusting as it still wants to die at idle in gear, but not all the time.
So, the SNEEZING at start up is that a sign of the fuel supply being restricted?
I did open up the fuel pump and it had a lot of sand behind the screen (see pic). I changed the diaphragm, cleaned all the crud, replaced all the hoses and clamped them, filter was new, it now starts again.
Let me know what you think. Thanks in advance.