Yes, Berryman B-12 Chemtool Carburetor, Choke & Throttle Body Cleaners (part #0117, #0117C, #0120, and #0120C), will quickly dissolve gum, varnish, and other fuel-related deposits from the outside of fuel injectors. However, if you have any internal deposits, you want to either soak the injectors or run a high-quality, detergent-based fuel additive through the system, such as B-12 Chemtool Total Fuel System Clean-Up (part #2616), B-12 Chemtool Concentrated Intake Valve & Injector Cleaner (part #3012), or B-12 Chemtool Injector Cleaner Fuel Treatment (part #1112).