Yamaha F2.5C, Service Manual, Page: 35 / 184

6D55F11
3-4
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NOTE:
Be sure not to spill any fuel when removing
the fuel filter cup.
Power unit
3
Checking the engine oil
1. Place the outboard motor in an upright
position.
2. Remove the engine oil dipstick, wipe it
clean, and then insert it back into the oil
filler hole.
3. Remove the dipstick again to check the
oil level and to check the oil for discolora-
tion 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
1. Start the engine, warm it up, and then
turn it off.
2. Remove the engine oil dipstick and oil
filler cap
1
.
3. Place a drain pan under the drain hole,
and then remove the drain bolt
2
and let
the oil drain completely.
NOTE:
Be sure to clean up any oil spills.
4. Install the drain bolt, and then tighten it to
the specified torque.
5. Pour the specified amount of the recom-
mended engine oil into the oil filler hole.
6. Install the oil filler cap and dipstick, and
then start the engine and warm it up for 5
minutes.
T
R
.
.
Drain bolt:
27 N·m (2.7 kgf·m, 20.0 ft·lb)
Recommended engine oil:
4-stroke motor oil
API: SE, SF, SG, SH, or SJ
SAE: 10W-30 or 10W-40
Oil quantity:
Without oil filter replacement:
1.7 L (1.8 US qt, 1.5 Imp qt)
S6D53080
2
Top cowling / Fuel system / Power unit