Yamaha YFA1R(C) Motorcycle User Manual


 
Before installing the spark plug, measure the
electrode gap with a feeler gauge and adjust to
specification.
When installing the spark plug, always clean the
gasket surface and use a new gasket. Wipe off
any grime from the threads and tighten to the
specified torque.
8-10
a
Spark plug gap:
0.6 – 0.7 mm (0.02 – 0.03 in)
Tightening torque:
Spark plug:
12.5 Nm (1.25 m0kgf, 9.1 ft0lbf)
a. Spark plug gap
1. Spark plug wrench
q
5VJ-9-10-3 3/26/02 7:31 PM Page 8-11