Yamaha 2001 Drag Star XV250N Owner's Manual page 45

a. Spark plug gap
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the
specification.
Spark plug gap:
0.6–0.7 mm
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·kg)
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.
gap to
6-9
6