OSO'ers, My buddy has twin 502s in his 312 formula. Port motor starts, other you can here the solonoid click in the contol box where the ECU is but starter does nothing,, He checked all breakers,, Anythig else to look at before pulling starter which will suck?
Can a solonoid pull in without sending power to the starter? Or is he screwed? Any inline blade fuses?

Check the slave solenoid, many times it will click but not pass current to the starters solenoid.

Is the main solenoid on ther starter or somewhere else on the 502mag mpi?

There are btwo one on the starter and one by the 50 AMP breaker on the front of the engine, I have quite a few not needed starter changes only to find the slave at fault. Any time there is not an obvious reason for the starter not working always check the slave first.

Thanks for the info,, I'll pass on to him.. Changing the starter will suck..

It's not so bad. The port engine would be harder since the starter is on the starboard side.

YUP!!! he left the plugs out once and got water to just below the drive shafts...YIKES... So it was the starter and he said F - it and dropped it off at our local boat fixer upper. Former Mandy's Landing owner here in Ohio. we're both 6'5"+and a few hondo lbs so niether one of us felt like hanging upside down, backwards in the engine compartment.. I told him to B.O.A.T. Break out another thousand my friend,,,,,,,,,,,,,,,, I think I need to buy him a shirt that says " GOT PLUGS"

If it's the starter make sure the bolts don't break off in the block. I can't tell ya how much fun it is to drill, tap and repair that situation all while lying over the motor upside down. I became an expert at it. One thing I found was that there s/b a bracket holding the front of the starter to the block to help support the starter.