E 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 pro- peller is more suitable for a smaller oper- ating load. 14-1/2x17-M 1 23 602022 Yamaha dealers stock a range of pro- pellers, and can advise you and install a propeller on your outboard that is best suited to your application. NOTE:
At full throttle and under a maximum boat load, the engine’s rpm should be within the upper half of the full throttle operating range, as listed in “SPECIFICA- TIONS” on page 4-1. Select a propeller which fulfills this requirement. If operating under conditions which allow the engine’s rpm to rise above the maxi- mum recommended range (such as light boat loads), reduce the throttle setting to maintain the rpm in the proper operating range. 1 Propeller diameter (in inches) 2 Propeller pitch (in inches) 3 Type of propeller (propeller mark) Refer to the section “CHECKING PRO- PELLER” for instructions on propeller removal and installation. 1-13