DIRECTIONS: Shut engine off. Protect painted surfaces from overspray. Remove air cleaner or air-intake duct into throttle body. Place towel underneath to collect residue. Clean carburetor/throttle body and linkage. Spray choke while working by hand. Spray down carburetor throat to blast deposits from the lower throttle plate. For a throttle body, spray liberally while moving butterfly valve. Disconnect PCV valve and spray directly into unit. If sprayed on painted surface, wash off immediately.