Mercury Power Tune Internal Engine Cleaner

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MERCURY/QUICKSILVER 858080Q03 POWER TUNE INTERNAL ENGINE CLEANER Used to remove performance-robbing carbon build-up from the combustion chamber. Use in all 2-stroke and 4-stroke ca rburetor and fuel injected gasoline enginesThis including cars, trucks, motorcycles, ATVs, snowmobiles, marine engines, lawn mowers, chain saws, weed eaters and snow blowersUsed to remove performance-robbing carbon build-up from the combustion chamberSafe for catalyzed engines Directions: Run engine until warm.Remove air filter.Securely insert a plastic tube in the spray head nozzle.Increase engine speed to 200 - 300 RPM above idle.Slowly spray Power Tune directly into the carburetor intake so it goes into the engine. If engine stalls, restart it and continue spraying Power Tune into the engine.In cases of extreme deposit buildup, spark plug fouling may occur. Remove, clean and replace spark plugs as necessary.When the can is almost empty, spray heavily until the engine stalls.Replace air filter.Allow Power Tune to soak inside the engine for 15-30 minutes.Start the engine and rev slightly. You may notice a lot of smoke. Smoking is normal because your engine is burning off the cleaner and deposits in your engine's combustion chamber.Continue revving your engine for 4-5 minutes or until smoking stops. Show more