Yamaha F90D, Service Manual

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6D81G11
3-4
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Power unit
3
Checking the engine oil
1. Place the outboard motor in an upright
position.
2. Remove the oil dipstick, wipe it clean,
and then insert it back into the dipstick
hole.
3. Remove the oil dipstick again to check
the oil level and to check the oil for dis-
coloration and its viscosity.
NOTE:
• Change the oil if it appears milky or dirty.
• If the engine oil is below the minimum level
mark
b
, add sufficient oil until the level is
between
a
and
b
.
Changing the engine oil using an oil
changer
1. Start the engine, warm it up, and then
turn it off.
2. Remove the oil dipstick and oil filler cap
1
.
3. Insert the tube of the oil changer
2
into
the dipstick hole
3
.
4. Operate the oil changer to extract the oil.
NOTE:
Be sure to clean up any oil spills.
5. Pour the specified amount of the recom-
mended engine oil into the oil filler hole.
6. Install the oil filler cap and oil dipstick,
and then start the engine and warm it up
for 5 minutes.
7. Turn the engine off, and then check the
oil level and correct it if necessary.
Changing the engine oil by draining
it
1. Start the engine, warm it up, and then
turn it off.
S60C1150
a
b
S60C3060
1
Recommended engine oil:
4-stroke motor oil
API: SE, SF, SG, SH, or SJ
SAE: 10W-30 or 10W-40
Engine oil quantity:
Without oil filter replacement:
4.3 L (4.55 US qt, 3.78 Imp qt)
Top cowling / Fuel system / Power unit