Hello,
I have a 1987 Mercury 80HP 3CYL engine on a 16ft skeeter bass boat. There are a couple issues with the the motor,
1. The engine misfires when coming off plane, at about 3000RPM, the boat starts to misfire terribly. I put it in neutral and it goes away.. I'm thinking stater.
2. Serial Numbers... The one on the engine says A727384 but I CANNOT find anything online about this model of engine. The only model i can find is A722297.
Any Ideas about number the Serial number? I also think that replacing the stater will fix this because i have rebuild the ENTIRE fuel system, plugs are good, compression is at 120 on all 3 CYL good spark. i have done a trigger and coils. My Voltmeter tells me that at about 5500RPM's the boat is charging at 18V.
Thanks
I have a 1987 Mercury 80HP 3CYL engine on a 16ft skeeter bass boat. There are a couple issues with the the motor,
1. The engine misfires when coming off plane, at about 3000RPM, the boat starts to misfire terribly. I put it in neutral and it goes away.. I'm thinking stater.
2. Serial Numbers... The one on the engine says A727384 but I CANNOT find anything online about this model of engine. The only model i can find is A722297.
Any Ideas about number the Serial number? I also think that replacing the stater will fix this because i have rebuild the ENTIRE fuel system, plugs are good, compression is at 120 on all 3 CYL good spark. i have done a trigger and coils. My Voltmeter tells me that at about 5500RPM's the boat is charging at 18V.
Thanks