I have a '98 310 DA w/ twin 350 Mag engines w/ Velvet drive V drives. approx 575 hours on each, with recent oil change and tune up.
I'm fairly new to the boat. Both engines run up fine to 4800 RPM's in Neutral.
However, with both trans in gear, Starboard engine will run up to 3800 or so, but port engine will only go to 28-2900 RPM's. Port throttle will move, but no more RPM's past about 1/2 way point in throttle movement. Bottom was cleaned 8 months ago, so there may be some growth from sitting all winter, but that doesn't explain the lack of throttle response on the port engine.
Any ideas or concrete help would be appreciated.
