Lubrication; Flushing Power Unit - Yamaha F75B Owner's Manual

Maintenance
Push in the air valve with a screwdriver to
introduce air into the float chamber, so
that the gasoline will drain smoothly.
Then, tighten the drain screw.
9. Remove the flushing attachment.
10. Install the top cowling.
11. If "Fogging Oil" is not available, turn off
the engine after the 6 step. Then perform
the 8 step procedure.
12. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
13. If the "Fogging Oil" is not available, re-
move the spark plug(s). Pour a teaspoon-
ful of clean engine oil into each cylinder.
Crank several times manually. Replace
the spark plug(s).
TIP:
A flushing attachment is available from your
Yamaha dealer.
EMU28402

Lubrication

1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 65.
2. Change the gear oil. For instructions, see
page 69. Inspect the oil for the presence
of water that indicates a leaky seal. Seal
replacement should be performed by an
authorized Yamaha dealer prior to use.
3. Grease all grease fittings. For further de-
tails, see page 64.
TIP:
For long-term storage, fogging the engine
with oil is recommended. Contact your
Yamaha dealer for information about fogging
oil and procedures for your engine.
EMU28443

Flushing power unit

Perform this procedure right after operation
for the most thorough flushing.
58
ECM01530
NOTICE
Do not perform this procedure while the
engine is running. The water pump may be
damaged and severe damage from over-
heating can result.
1. After shutting off the engine, unscrew the
garden hose connector from the fitting on
the bottom cowling.
1. Fitting
2. Garden hose adapter
3. Garden hose connector
2. Screw the garden hose adapter onto a
garden hose, which is connected to a
fresh water supply, and then connect it to
the garden hose connector.
3. With the engine off, turn on the water tap
and let the water flush through the cool-
ing passages for about 15 minutes. Turn