Yamaha VIRAGO XV250P Owner's Manual page 46

a. Spark plug gap
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if neces-
sary, adjust the gap to specification.
Spark plug gap:
0.6–0.7 mm (0.02–0.03 in)
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
PERIODIC MAINTENANCE AND MINOR REPAIR
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lb)
NOTE:
@
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 speci-
fied torque as soon as possible.
@
4. Install the spark plug cap.
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