Periodic maintenance and adjustment
7-9
7
Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the spark
plug threads.
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.
EAUU2060
Engine oil and oil filter ele-
ment
The engine oil level should be checked
regularly. In addition, the oil must be
changed and the oil filter element re-
placed at the intervals specified in the
periodic maintenance chart.
ECAW0033
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD”. Make sure that
the engine oil doesn’t contain
friction-reducing additives.
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Tightening torque:
Spark plug:
13 N·m (1.3 kgf·m, 9.6 lb·ft)
Recommended brand:
YAMALUBE
SAE viscosity grade:
10W-40
API service grade:
SG or higher, JASO standard MA
Oil quantity:
Oil change:
0.80 L (0.85 US qt, 0.70 Imp.qt)
With oil filter removal:
0.85 L (0.90 US qt, 0.75 Imp.qt)
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