10-25
Predelivery check
Checking the outboard motor
mounting height
1. Check:
• Outboard motor mounting height
Improper → Adjust.
a. Check that the anti-cavitation plate “1”
is aligned with the bottom of the boat
“2”.
• If the mounting height is too high, cavitation
will occur and propulsion will decrease.
Besides, the engine speed will increase ab-
normally and cause the engine to overheat.
• If the mounting height is too low, water resis-
tance will increase, which will decrease en-
gine efficiency and performance.
• The appropriate mounting height depends
on the combination of the boat and outboard
motor. To determine the appropriate mount-
ing height, test run the outboard motor at dif-
ferent heights.
2. Check:
• Mount bolts
Loosen → Tighten.
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