Boat recently started to lose power at 36 mph and has had trouble maintaining speed after 34 mph. My driver said it was surging a bit especially in the corners.
I do a one mile up the lake at 36 and then a left hand keyhole turn and come right back down the same path. He said it was struggling to maintain speed and then surged in speed on the turn. I ski a lot, and one of my buddies on shore who also drives for me said the boat sounded different coming down the lake.
I checked the carb filters, the fuel pump flow, the fuel water separator, sprayed carb cleaner around the gaskets for air leaks, checked the plugs, distributor and cap look fine, advanced and retarded the timing, (runs a little better retarded) checked the strainer and impeller for cold circulation, also checked water pick up. Warm water is flowing out of exhaust, both sides. idle is a bit rough and it just sounds off. Going down the lake it usually sounds smooth and jumps from 36 to 40 very quickly. When I tried it today after all that checking it did not respond well. Am I missing something?
I do a one mile up the lake at 36 and then a left hand keyhole turn and come right back down the same path. He said it was struggling to maintain speed and then surged in speed on the turn. I ski a lot, and one of my buddies on shore who also drives for me said the boat sounded different coming down the lake.
I checked the carb filters, the fuel pump flow, the fuel water separator, sprayed carb cleaner around the gaskets for air leaks, checked the plugs, distributor and cap look fine, advanced and retarded the timing, (runs a little better retarded) checked the strainer and impeller for cold circulation, also checked water pick up. Warm water is flowing out of exhaust, both sides. idle is a bit rough and it just sounds off. Going down the lake it usually sounds smooth and jumps from 36 to 40 very quickly. When I tried it today after all that checking it did not respond well. Am I missing something?
