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4.3 Determining the Mounting Height of the Outboard
The following outboard mounting height settings will work well for most applications, however, because of
different boat/hull designs, the setting should be rechecked by test running the boat. Refer
to Water
Testing
.
CAUTION:
• Installing the outboard too high on the transom will allow the water intake to suck in air and cause
cavitation. Cavitation causes the engine to overspeed in spurts and reduce thrust. This condition should be
avoided by proper height setting.
• Installing the outboard too low on the transom will allow excessive drag.
BOATS WITH A “V” BOTTOM HULL
1. Measure the width of the leading edge on the water intake housing.
Make a horizontal line on the transom up from the “V” bottom the same length as the width of the water
intake housing.
a
b
a - Horizontal line b - Width of the leading edge on the water intake housing
