General information

tric system could perform poorly or be overloaded, causing electric system dam- age.

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

EMU25711

Battery specifications

Minimum cold cranking amps (CCA/SAE):

T8PRD 245.0 A

T8PHD 245.0 A

T8EHD 245.0 A

Minimum marine cranking amps (MCA/ABYC):

T8PRD 323.0 A

T8PHD 323.0 A

T8EHD 323.0 A

Minimum reserve capacity (RC/SAE): T8PRD 52 minutes

T8PHD 52 minutes T8EHD 52 minutes

EMU25730

Without a rectifier or Rectifier Regulator

ECM01090

CAUTION:

A battery cannot be connected to models that do not have a rectifier or Rectifier Regulator.

If you wish to use a battery with the models without a rectifier or Rectifier Regulator, install an optional Rectifier Regulator.

Using a maintenance-free battery with the above models can shorten the life of the battery significantly.

Install an optional Rectifier Regulator or use accessories rated to withstand 18 volts or higher with the above models. Consult your Yamaha dealer for details on installing an optional Rectifier Regulator.

EMU25741

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 main- tained. 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 appli- cation.

1.Propeller diameter in inches

2.Propeller pitch in inches

3.Type of propeller (propeller mark)

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