Owner`s manual

Maintenance
71
oline purging from the fuel tank vent due to
expansion with temperature changes.
Do not cap the fuel tank vent. Excessive
pressure could damage the boat and motor’s
fuel systems.
A partially filled fuel tank, less than 7/8 full
but not completely empty, is not recommend-
ed. Air space above the gasoline allows air
movement which can bring in water through
condensation as the air temperature chang-
es.
Condensation inside the fuel tank can cause
corrosion problems and phase separation of
gasoline containing ethanol.
Consult your Yamaha dealer concerning pre-
ventative measures that may work best for
the gasoline and environmental conditions in
your area.
EMU28305
Procedure
EMU41141
Cleaning the outboard motor
When cleaning the outboard motor, the top
cowling must be installed.
1. Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not
spray water into the air intake.
[ECM01840]
2. Drain the cooling water completely out of
the outboard motor. Clean the body thor-
oughly.
EMU41071
Lubrication
1. Change the gear oil. For instructions,
see page 88. Check the gear oil for the
presence of water that indicates a leaky
seal. Seal replacement should be per-
formed by an authorized Yamaha dealer
prior to use.
2. Lubricate all grease fittings. For further
details, see page 77.
TIP:
For long-term storage, fogging the engine
with fogging oil is recommended. Contact
your Yamaha dealer for information about
fogging oil and procedures for your outboard
motor.
EMU41152
Cleaning and anticorrosion
measures
1. Wash the exterior of the outboard motor
using fresh water, and then dry the out-
board motor completely. For instructions
on cleaning the outboard motor, see
page 71. NOTICE: Do not spray water
into the air intake.
[ECM01840]
2. Spray the outboard motor powerhead
with “Yamaha Silicone Protectant.”
3. Wax the cowling with a non-abrasive
wax such as “Yamaha Silicone Wax.”
EMU40962
Flushing cooling water passage
Perform this procedure right after operation
for the most thorough flushing.
NOTICE
ECM01530
Do not perform this procedure while the
engine is running. The water pump may
be damaged and severe damage from
overheating can result.
1. Disconnect the garden hose connector
from the fitting on the bottom cowling.
1. Air intake
1
ZMU07209
6CE-9-34-1E0.book 71 ページ ２０１２年１１月２３日 金曜日 午後１時１３分