1974 20 HP johnson rebuilt at dealer and brought home running perfect now two years of setting in my heated basement it will only stay running half throttle to full ... cleaned Carb and still the same why would there be a fixed jet on the slow speed.....ggggggrrrrrrrrrrnow how does one adjust...
I've got a motor and have been searching with No luck I've got the model and serial but still no luck here's the model: 20ba 74m sand the serial is. C48026 and this is right off the Johnson outboard tag made. In Canada and I'd say its a 25 HP .... I figured if any site could help this would be...
