I have a 4 cylinder 50hp merc outboard s/n A132885. I have talked to three different marine dealer/ repair shops and they were unable to help. First-- what year is this engine? The best anyone could say was that it was probably mid 80's. Second-- when I stop the motor to use the trolling motor, it leaks gas in the water. It doesn't matter if the motor is up or down, but does leak worse in the up position. I have even unplugged the gas line and run the motor till it starts to sputter and it still leaks. The carbs seem to be wet with gas most of the time. I've looked and watched for a leak in the motor compartment but don't see anything. The 3 repair guys I've talked to all say something different, EXCEPT that labor for rebuilding the carbs is about $100-130 not including parts. Any info about problem or best places to get parts would be greatly appreciated.