I recently aquired a 18 hp fast twin that was recently "tuned up"
I purchased a new gas tank & fuel hose, new gas (50:1) and started the motor.
it ran rough but it ran- next attempt on the boat, the motor started okay, idled rough,but smooth out under power. it had a tendency to surge somewhat at full throttle. 1 week later the next run was even better- it started easily,had a rough idle but ran well at full throttle and I was a happy camper.
1 week later, same tank of gas, it just barely started, idled very rough, and would not accelerate when opening the throttle, it would sputter and die. now, it won't start at all. it pulls easy when trying to start it, the thermostat did work on previous runs, there was no overheating and the total run times of all 4 runs was about 40 minutes.
the plugs are new, the filter screen on the fuel block is clean, the hoses all seem okay. the gas is okay.
does anybody have a few words of wisdom?
I purchased a new gas tank & fuel hose, new gas (50:1) and started the motor.
it ran rough but it ran- next attempt on the boat, the motor started okay, idled rough,but smooth out under power. it had a tendency to surge somewhat at full throttle. 1 week later the next run was even better- it started easily,had a rough idle but ran well at full throttle and I was a happy camper.
1 week later, same tank of gas, it just barely started, idled very rough, and would not accelerate when opening the throttle, it would sputter and die. now, it won't start at all. it pulls easy when trying to start it, the thermostat did work on previous runs, there was no overheating and the total run times of all 4 runs was about 40 minutes.
the plugs are new, the filter screen on the fuel block is clean, the hoses all seem okay. the gas is okay.
does anybody have a few words of wisdom?