Hi! I am planning to purchase 2-stroke 15HP Yamaha outboard engine for an
inflatable boat (3.4 meters, 64 kg). Most of the time I will be driving
the boat alone in very calm sey with just a few spearguns in it. The
engine comes with 9 1/4 X 8 in. 3-blade propeller. Should I purchase a
propeller with 10-inch pitch instead since the load on the engine is
pretty light?