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16 Posts
It sounds like the fuel filter. The Q jet, has either a paper element in it or the brass type. You have to take the fuel line off then take the bigger nut off right behind where the gas line screwed into it. There is probably another filter inline somewhere too between carb and fuel pump. I can't explain why it does not run better after changing the plugs out though. Maybe there was still enough residual gas in the cylinders to deaden them at start up. Take the plugs back out, dry them off, then crank the engine over a few times with them out. Reinstall, see if that helps.
Rocky
Rocky