Boat motor runs good then starts overcharging then dies......please help?

Question

I need help but dont have much info. A friend of mine has an outboard motor, dont know the make or model

right now. here is his problem. It is a pontoon, the motor starts and runs good for awhile then after awhile the

voltage meter goes crazy as if it is overcharging then starts beeping then the motor dies. He says that it will

start back up and run for awhile then goes through the same problems. Could you give me any advice go give him

or even where to start touble shooting the problem. thank you very much for your time.

Answer 1

check the spark plugs and the conection between every wire.