General information

dry rags.

EMU25650

 

● Do not overfill the fuel tank.

 

Engine oil

 

 

● Tighten the filler cap securely after re-

 

 

 

Recommended engine oil:

fueling.

 

 

YAMALUBE 2-stroke outboard motor

● If you should swallow some gasoline,

 

 

oil

inhale a lot of gasoline vapor, or get

 

 

 

gasoline in your eyes, get immediate

 

If the recommended engine oil is not avail-

medical attention.

 

 

able, another 2-stroke engine oil with an

● If any gasoline spills onto your skin, im-

 

 

NMMA-certified TC-W3 rating may be used.

mediately wash with soap and water.

 

 

EMU25741

Change clothing if gasoline spills on it.

 

Propeller selection

● Touch the fuel nozzle to the filler open-

 

The performance of your outboard motor will

ing or funnel to help prevent electro-

 

be critically affected by your choice of propel-

static sparks.

 

ler, as an incorrect choice could adversely

ECM00010

 

affect performance and could also seriously

CAUTION:

 

 

 

damage the motor. Engine speed depends

Use only new clean gasoline which has

 

on the propeller size and boat load. If engine

been stored in clean containers and is not

 

speed is too high or too low for good engine

contaminated with water or foreign mat-

 

performance, this will have an adverse effect

ter.

 

on the engine.

 

 

 

 

Yamaha outboard motors are fitted with pro-

EMU25570

 

pellers chosen to perform well over a range

Gasoline

 

 

of applications, but there may be uses where

If knocking or pinging occurs, use a different

 

 

a propeller with a different pitch would be

brand of gasoline or premium unleaded fuel.

 

 

more appropriate. For a greater operating

 

 

 

 

Recommended gasoline:

 

load, a smaller-pitch propeller is more suit-

Regular unleaded gasoline with a min-

 

able as it enables the correct engine speed

imum octane rating of 86 (Pump Oc-

 

to be maintained. Conversely, a larger-pitch

tane Number) = (R+M)/2

 

propeller is more suitable for a smaller oper-

 

 

 

 

ating load.

Gasohol

 

Yamaha dealers stock a range of propellers,

There are two types of gasohol: gasohol con-

 

and can advise you and install a propeller on

taining ethanol and that containing metha-

 

your outboard that is best suited to your ap-

nol. Gasohol containing ethanol can be used

 

plication.

if ethanol content does not exceed 10% and

 

 

the fuel meets minimum octane ratings.

 

 

Yamaha does not recommended gasohol

 

 

containing methanol because it can cause

 

 

fuel system damage or engine performance

 

 

problems.

 

 

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