couple of more questions you should ask, how old is the gas that's in there? When's the last time the carbs have been cleaned? After sitting for two years gasoline turns into a gumy type varnish and clogs up those carbs nicely. Also old gas doesn't ignite properly. Another thing it could be is your idle setting screw, or quite possibly a vacum leak around the rubber carb boots. It could also be fouled plugs, or bad sparkplug wires. Pull the plugs and take a look at the color on the tip, should be a tan brownish color. If it's black or white then it's missfiring, or is too rich. Then check the airfilter is clean which also greatly effects idle.
Last edited by mike_drz; 05-18-2006 at 05:52 PM.