To measure the pitch, place the pitch gage supplied with the propeller against the
after face of the outer hub with the tab on the gage against the reverse stop (see drawing)
While the pitch indicated is approximately correct, it is more important to have both blades the same and the performance
optimized than to have a specific pitch. Differences in boats, motors, drive trains, fuel management systems and the way you
operate your boat can make the optimal pitch for each boat different.
Once the blades are set to the same pitch, you should make minor corrections to the
pitch after having observed the motoring characteristics. If the motor is not reaching its maximum rated RPM at full throttle,
as measured by a tachometer, you can decrease the pitch until it does. If the motor reaches its full rated RPM but the boat
is not reaching hell speed you can increase the pitch until you no longer reach full RPM.
The performance of the feathering propeller can be optimized by adjusting the pitch
after the prop is installed and the boat is in the water. Small pitch changes can make a big difference. PLEASE NOTE: if you
increase the pitch to the point where there is no backlash (see below) you must adjust the backlash as well to avoid premature
failure of the prop blades.
A set screw on each blade bears on the forward stop pin to set the forward pitch of that blade. Both blades must be
set to the same pitch to avoid vibration, Each 1/3 clockwise turn on the pitch screw increases the pitch one inch and vice
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