Changing Engine Oil - Yamaha F20B Owner's Manual

tank, or with the outboard motor in the water.
1. Start the engine and allow it to warm up
fully in neutral until it is running smooth-
ly.
2. Once the engine has warmed up, verify
whether the idle speed is set to specifi-
cation. For idle speed specifications,
see page 9. If you have difficulty verify-
ing the idle speed, or the idle speed re-
quires adjustment, consult a Yamaha
dealer or other qualified mechanic.
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Changing engine oil

ECM01710
NOTICE
Change the engine oil after the first 20
hours of operation or 3 months, and ev-
ery 100 hours or at 1-year intervals there-
after. Otherwise the engine will wear
quickly.
Extract the engine oil with an oil changer.
1. Put the outboard motor in an upright po-
sition (not tilted). NOTICE: If the motor
is not level, the oil level indicated on
the dipstick may not be accurate.
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2. Start the engine. Warm it up and keep
the idle speed for 5-10 minutes.
3. Stop the engine and leave it for 5-10
minutes.
4. Remove the top cowling.
5. Remove the oil filler cap. Pull out the dip-
stick and use the oil changer to extract
the oil completely.
1. Oil changer
TIP:
If the oil changer is not available, remove the
drain screw while holding a container under
the drain hole. Let the oil drain completely.
Wipe up any spilled oil immediately.
1. Drain screw
6. Add the correct amount of oil through the
filler hole. Put back the filler cap and the
dipstick. NOTICE: Overfilling the oil
ZMU05554
could cause leakage or damage. If the
oil level is above the upper level
mark, drain until the level meets the
specified capacity.
Maintenance
1
1
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