Yamaha YFM35FAV Offroad Vehicle User Manual


 
8-19
a. Spark plug gap
2. Clean the surface of the spark plug gas-
ket and its mating surface, and then wipe
off any grime from the spark plug
threads.
3. Install the spark plug and tighten it to the
specified torque.
NOTE:
_
If a torque wrench is not available when you
are installing a spark plug, a good estimate of
the correct torque is 1/4 to 1/2 turn past finger
tight. Have the spark plug tightened to the
specified torque as soon as possible.
_
4. Install the spark plug cap.
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
EE.book Page 19 Saturday, March 26, 2005 9:48 AM