Propeller Replacement - Honda BF250A Owner's Manual

Propeller Replacement

Before replacing the propeller,
remove the emergency stop switch
clip from the emergency stop switch
to prevent any possibility of the
engine being started while you are
working with the propeller.
The propeller blades may have sharp
edges, so wear heavy gloves to
protect your hands.
Operating the outboard motor at
higher altitudes will reduce available
power. This may require decreasing
the propeller pitch to maintain correct
engine RPM.
Removal
1. Remove the cotter pin, unscrew the
castle nut, remove the washer, and
then remove the propeller and
thrust washer.
2. Inspect the propeller shaft for any
fishing line or debris.
SERVICING YOUR OUTBOARD MOTOR
Installation
Some propeller brands require
specific mounting hardware. Refer to
your specific propeller
manufacturer's instructions for
proper installation.
1. Apply marine grade grease to the
propeller shaft.
2. Install the thrust washer with the
grooved side toward the gear case.
3. Install the propeller.
4. Install the washer as shown on the
next page.
5. Lightly tighten the castle nut by
hand or wrench until the propeller
has no free play.
6. Tighten the castle nut using a
torque wrench.
CASTLE NUT TIGHTENING
TORQUE:
0.7 lbf·ft (1.0 N·m, 0.1 kgf·m)
7. Then, using a torque wrench,
tighten the castle nut until the first
available groove in the castle nut
aligns with the cotter pin hole. Do
not tighten past the first alignment
of the castle nut groove and the
cotter pin hole.
TIGHTENING TORQUE LIMIT:
33 lbf·ft (44 N·m, 4.5 kgf·m)
Do not tighten the castle nut above
the TIGHTENING TORQUE LIMIT,
or the propeller and shaft may be
damaged.
8. Be sure to replace the cotter pin
with a new one.
• Use a Honda Genuine stainless
steel cotter pin or equivalent
cotter pin and bend the pin ends
as shown on next page.
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