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Maintenance
44
en 1/4 - 1/2 turn. Have the drain plug torqued
to the correct value with a torque wrench as
soon as possible.
4. Add the correct amount of oil through the
filler hole. Install the filler cap.
5. Start the engine and make sure that
there are no oil leaks.
6. Turn off the engine and wait 3 minutes.
Recheck the oil level using the dipstick
to be sure the level falls between the up-
per and lower marks. Fill with oil if it is
below the lower mark, or drain to the
specified level if it is above the upper
mark.
NOTE:
●
For disposal of used oil consult your
Yamaha dealer.
●
The oil should be changed more often
when the engine is operated under ad-
verse conditions such as extended trolling.
EMU29111
Checking wiring and connectors
●
Check that each grounding wire is properly
secured.
●
Check that each connector is engaged se-
curely.
EMU29120
Exhaust leakage
Start the engine and check that no exhaust
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
EMU29130
Water leakage
Start the engine and check that no water
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
EMU29140
Engine oil leakage
Check for oil leaks on the around the engine.
NOTE:
If any leaks are found, consult your Yamaha
dealer.
EMU29171
Checking propeller
WARNING
EWM00321
You could be seriously injured if the en-
gine accidentally starts when you are
near the propeller.
●
Before inspecting, removing, or install-
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 re-
move 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 pro-
peller when loosening or tightening the
propeller nut. Put a wood block be-
tween the anti-cavitation plate and the
propeller to prevent the propeller from
turning.
1. Oil filler cap
Engine oil grade/capacity:
See page 34
ZMU02677
1