"Hi i have a 1996 40 hp marine
"Hi i have a 1996 40 hp mariner. every now and then i will have throttle open fully but boat will only travel t about 3-6 knots.
Sometimes it happens first up cold, or when motor is warm.
Any help would be greatly appreciate. thanks"
"I have a 40 hp tohatsu on my
"I have a 40 hp tohatsu on my pontoon boat. The engine will rev up and runs well while not in gear, but when put in gear it will no longer produce the power it used too. I have checked compression on both cylinders and they were good. It still runs smooth, but it...