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my primary throtle blades when closed are open about 1/8'' is that to much?car runs rich at idle just going by smell and it will burn your eyes if you squat behind the exhaust.runs going going down the road and dosn't fall on it's face when you get on it even from idle. by the way it's a 750 dp...

should the spark at the plug be yellow or blue? the reson for asking is i'm fouling my plugs.