Checking Propeller - Yamaha F150 Owner's Manual

Maintenance
7. Activate the trim-up switch until the tilt rod
is fully extended. Unlock the tilt support
lever.
8. Tilt the outboard motor down. Check that
the tilt rod and trim rods operate smooth-
ly.
NOTE:
Consult your Yamaha dealer if any operation
is abnormal.
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Checking propeller

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WARNING
You could be seriously injured if the en-
gine accidentally starts when you are near
the propeller.
Before inspecting, removing, or install-
G
ing the propeller, remove the spark plug
caps from the spark plugs. Also, place
the shift control in neutral, turn the main
switch to " " (off) and remove the key,
and remove the lanyard from the engine
stop switch. Turn off the battery cut-off
switch if your boat has one.
Do not use your hand to hold the propel-
G
ler when loosening or tightening the
propeller nut. Put a wood block between
the anti-cavitation plate and the propel-
ler to prevent the propeller from turning.
62
Checkpoints
Check each of the propeller blades for
G
wear, erosion from cavitation or ventilation,
or other damage.
Check the propeller shaft for damage.
G
Check the splines / shear pin for wear or
G
damage.
Check for fish line tangled around the pro-
G
peller shaft.
Check the propeller shaft oil seal for dam-
G
age.
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