at high trolling speeds my 1990 9.9 4 stroke hi thrust will stall out and die after a minute or so. usually if i pump the bulb it will buy it another minute. sounds like a fuel pump but its new (the old one was leaking gas into the crankcase). bulb is always hard and its running off the main tank with the main motor. would a float problem also cause this?
it will idle and putt around for ever but under much load it will sputter out and die. i took off the fuel line from the fuel pump outlet and it just drips fuel(at best) at idle. not like the spurt it describes in the manual. i took the pump apart and it looks fine.
some people have said that im running too large of fuel line to it. im running 3/8 hose from the water separator to the motor and the motor has 1/4 on it. the manual says not to use too small hose but says nothing about too large. and i've never run this thing at high speeds before so i cant compare it. its running off the main tank.
it will idle and putt around for ever but under much load it will sputter out and die. i took off the fuel line from the fuel pump outlet and it just drips fuel(at best) at idle. not like the spurt it describes in the manual. i took the pump apart and it looks fine.
some people have said that im running too large of fuel line to it. im running 3/8 hose from the water separator to the motor and the motor has 1/4 on it. the manual says not to use too small hose but says nothing about too large. and i've never run this thing at high speeds before so i cant compare it. its running off the main tank.