I have 2001 200 EFI (L) 0T273984 that will run perfect for my first few runs of the day, but will go to hell once it sets for 15-20 mins while I fish. When I got to take off the engine will bog and I will get intermittent beeping like the beeping sound when you turn the key on (no pattern to the beeps). Once it starts I cannot get it above 12-1300 RPMs and it will either run rough at idle or die out all together. I can always get it started again though. Once the boat sets for a few hours and the motor cools completely down it will run fine again and start the whole process all over again.
the strangest part of it this all is that I finally had a mechanic look at it after I replaced plugs, filters, fuel lines, checked tank vents, cleaned VST, tested for water in gas, and it ran perfect for him during a water test. He had a fuel pressure gauge on to monitor I was getting the right pressure, so the top cover was off the motor. Which leads me to believe this is some sort of heat soak issue with the electronics, being we could not replicate with everything getting full air cooling. I wanted to check here to see if you guys had any input or insight prior to throwing cash at the motor. Thanks for any help you can provide.