What size main jet did you install. You have 2 jets a pilot and main. the main is out of the picture at idle and does not come in until about 1/3 throttle. If the smoke is coolant it will definitely smell like coolant, if oil it will smell like burnt oil and will have a bluish gray color. If fuel it will be a grayish to black and will have it's own distinct smell from the hydrocarbons created from the unburned fuel.
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