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Yamaha F20B User Manual

Yamaha F20B
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Maintenance
69
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.
EMU38802
Changing engine oil
NOTICE
ECM01710
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.
[ECM01860]
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.
T
IP:
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.
6. Add the correct amount of oil through the
filler hole. Put back the filler cap and the
dipstick.
NOTICE:
Overfilling the oil
could cause leakage or damage. If the
oil level is above the upper level
mark, drain until the level meets the
specified capacity.
[ECM01850]
ZMU05554
1. Oil changer
1. Drain screw
1
ZMU06617
ZMU05561
1

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Yamaha F20B Specifications

General IconGeneral
BrandYamaha
ModelF20B
CategoryOutboard Motor
LanguageEnglish

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