I have a 1973 115hp Johnson. Ran boat on water and engine would only hit 4000 rpm. Sprayed fuel into carbs and RPM went up so I cleaned both carbs. Put boat back in water and it ran fine, getting over 5000 rpm. While running that day I got the over temp alarm so shut down and got towed in. Replaced water pump and tried boat again. It would not go over 4000 rpm agaain so I pulled carbs again and cleaned them and also replaced all fuel lines. Tried boat again and still will not go over 4000 rpm. It does not help to spray gas in carbs. What can it be?
Thanks,
Hedhunter
Thanks,
Hedhunter
Comment