General information

electric system could perform poorly or be overloaded, causing electric system damage.

For electric start models, choose a battery which meets the following specifications.

EMU25711

Battery specifications

Minimum cold cranking amps (CCA/ SAE):

380.0 A

Minimum marine cranking amps (MCA/ ABYC):

502.0 A

Minimum reserve capacity (RC/SAE): 124 minutes

NOTE:

The engine cannot be started if battery voltage is too low.

EMU25742

Propeller selection

The performance of your outboard motor will be critically affected by your choice of propel- ler, as an incorrect choice could adversely affect performance and could also seriously damage the motor. Engine speed depends on the propeller size and boat load. If engine speed is too high or too low for good engine performance, this will have an adverse effect on the engine.

Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch would be more appropriate. For a greater operating load, a smaller-pitch propeller is more suitable as it enables the correct engine speed to be maintained. Conversely, a larger-pitch propeller is more suitable for a smaller operating load.

Yamaha dealers stock a range of propellers, and can advise you and install a propeller on your outboard that is best suited to your ap- plication.

x- 1 2 3

ZMU04606

1.Propeller diameter in inches

2.Propeller pitch in inches

3.Type of propeller (propeller mark)

x- 1 2 3

ZMU04607

1.Propeller diameter in inches

2.Propeller pitch in inches

3.Type of propeller (propeller mark)

NOTE:

Select a propeller which will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat load. If operating conditions such as light boat loads then allow the engine r/min to rise above the maximum recommended range, reduce the throttle setting to maintain

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