I need to repower my 1988 340, 454s, straight inboards, does anyone have any advice or what best to use? I can't afford new so I was looking at remanufactured long blocks. I would like to up the hp as long as I will be going thru all this trouble. Any advice, experience or leads will be...
The wiring diagram I down loaded off the web shows a wire from the fuel pump to a Hobbs switch (whats that?) from the switch 1 wire to the coil and 1 wire to the starter relay (not sure where the relay is located)........?
I have a 1988 340 express with a Marine Power 454 (2000).
The engine starts and sounds good, however, after 20 minutes or so it dies, regardless of the RPMS. It will restart but then dies after only a couplee of minutes. There is no water in the seperators, The fuel pump is new, the filter at...