Aftermarket Engine Tune-Up

Sierra Carbon Cleaner 18-9570-0Specially designed to improve engine performance and efficiency. Thoroughly removes gum; varnish and carbon deposits. Cleans intake ports; valves; pistons and combustion chambers. Frees sticky rings. Designed for regular...

CRC Marine Carb/Choke Cleaner 12oz 6064Designed to maximize carburetor performance. Quickly dissolves carburetor deposits such as gum, sludge & varnish to improve fuel system performance & enhance fuel economy.

Sierra E-Go Blast Fuel Injection Cleaner 16Oz 18-8606For: Mercury; Yamaha; Honda. Replaces Mercury 92-8M0062765Cleans all fuel injector typesPrevents rough idling and stallingReduces intake and port depositsMaximizes fuel economy

Sierra Fuel Injection Cleang Assembly Merymhn 18-8600For Mercury; Honda; YamahaFuel additives and gasoline alone cannot clean away layers of fuel deposits when the engine is running. The only proven method is by removing the "stale" fuel (the cause of...