Checking The Timing Belt; Checking The Spark Plugs - Yamaha F80B Service Manual

E
Oil filter:
18 N·m (1.8 kgf·m, 13.3 ft·lb)
5. Pour the specified amount of the recom-
mended engine oil into the oil filler hole.
Recommended engine oil:
4-stroke motor oil
API: SE, SF, SG, SH, or SJ
SAE: 10W-30 or 10W-40
Engine oil quantity:
With oil filter replacement:
4.5 L (4.76 US qt, 3.96 Imp qt)
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.

Checking the timing belt

CAUTION:
Do not turn the flywheel magnet counter-
clockwise, otherwise the valve system
may be damaged.
1. Remove the flywheel magnet cover.
6D93G11
2. While turning the flywheel magnet clock-
wise, check the interior a and the exte-
rior b of the timing belt for cracks,
damage, or wear. Replace if necessary.
NOTE:
For replacement procedures, see Chapter 5,
"Replacing the timing belt."
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Checking the spark plugs

1. Remove the spark plug wire cover.
2. Disconnect the spark plug wires, and
then remove the spark plugs.
3. Clean the electrodes 1 with a spark plug
cleaner or wire brush. Replace the spark
plug if necessary.
4. Check the electrodes for erosion and
excessive carbon or other deposits, and
the gasket for damage. Replace the
spark plug if necessary.
a
b
Power unit
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2
3
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