Transmission Oil - Yamaha YZ85 Owner's Manual

Periodic maintenance and adjustment
To install the spark plug
1. Clean the surface of the spark
plug gasket and its mating surfa-
ce, and then wipe off any grime
from the spark plug threads.
2. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
Tightening torque:
Spark plug:
20 N·m (2.0 kgf·m, 14 lb·ft)
TIP
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.
3. Install the spark plug cap.
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Transmission oil

The transmission must be checked for
oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the transmission oil must be
changed at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place the motorcycle on a level
surface and hold it in an upright
position.
3. Place an oil pan under the trans-
mission case to collect the used
oil.
4. Remove the transmission oil filler
cap and its O-ring, and then re-
move the transmission oil drain
bolt and its gasket to drain the oil
from the transmission.
3 4
1. Transmission oil filler cap
2. O-ring
3. Transmission oil drain bolt
4. Gasket
5. Install the drain bolt and its new
gasket, and then tighten the bolt
to the specified torque.
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EAU4144B
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