Operation

ZMU03012

EMU27270

Ring Free Fuel Additive

Gasoline is a precise blend of many different substances, each chosen to give certain characteristics. Gasoline blends have been changing in recent years in response to concerns about pollution and resulting emissions regulations. One of the most obvious changes has been the elimination of lead from most fuels.

As gasoline has changed, the amount of additives such as aromatics and oxygenates has increased. These additives are important for the engines in passenger cars, but they can have detrimental effects in marine engines, because of increased deposits in the combustion chamber. When enough deposits collect, piston rings begin sticking. Performance drops and engine wear increases dramatically.

While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, available from your Yamaha dealer. Ring Free Fuel Additive has repeatedly proven its ability to clean combustion deposits from inside the engine, notably the critical piston-ring-land area, and fuel system components. Follow product labeling for use instructions.

EMU27403

Gasoline and oil mixing (100:1)

 

Gasoline to engine

 

oil ratio

 

 

Break-in period

See page 19

After break-in

100:1

 

 

If equipped with a portable fuel tank

1.Pour oil into the portable fuel tank, and then add gasoline.

1.Engine oil

2.Gasoline

2.Replace the fuel tank cap and close tightly.

3.Shake the fuel tank to mix the fuel thor- oughly.

4.Make sure that the oil and gasoline are mixed.

If equipped with a built-in fuel tank

1.Pour oil into a clean fuel can, and then add gasoline.

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