matt75johnson
New member
I have a 1981 johnson 75HP it will start up in the yard fine sometimes but takes about 2mins of trying to start it. When in water runs but hase no acceleration. got home started it on mufs and started trying to diagnose problem. Leting engine run i pulled the boots one by one #1 cyl no change in idle #2 engine dies and #3 no change in idle. i changed the fuel lines and clean the fuel pump screen no change. so can this be the coils, triger, power pack?