Engine runs rough at low and high speeds, very seldom it does smooths out momentarily, but most times it runs rough. Plugs are pristine.
Checked fuel path from tank sending unit to on board fuel filter. Tested fuel pump with vacuum according to the manual and it had a slow leak. Dealer says this is likely not the problem. I want to believe him because the fuel pump costs about $245, $90 for rebuild kit. There is a small filter between each carb and its fuel line, I havn't checked these yet but I will, looks like the carbs will need to come off to get them all (lower one is burried). I'd like to hear how any one else has fixed this type of problem and what the techs have to say about the fuel pump.
Checked fuel path from tank sending unit to on board fuel filter. Tested fuel pump with vacuum according to the manual and it had a slow leak. Dealer says this is likely not the problem. I want to believe him because the fuel pump costs about $245, $90 for rebuild kit. There is a small filter between each carb and its fuel line, I havn't checked these yet but I will, looks like the carbs will need to come off to get them all (lower one is burried). I'd like to hear how any one else has fixed this type of problem and what the techs have to say about the fuel pump.