carburetor cleaner 1)can enhance combustion efficiency, 2)help you to save oil and decrease the gas pollution. Choke and carburetor cleaner or carburetor cleaner1) Combines solvents and alcohols designed to remove gum, sludge and varnishfrom carburetors, chokes and PCV valves2) Fast, economical, convenient and provides "instant" tune-up benefits3) Contains no chlorinated solvents and meets ...