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Before installing the spark plug, measure the
electrode gap with a wire thickness gauge
and adjust it to specification.
a. Spark plug gap
When installing the spark plug, always clean
the gasket surface and its mating surface.
Wipe off any grime from the threads and tight-
en it to the specified torque.
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.5 ft·lbf)
U4XE16.book Page 12 Monday, March 24, 2003 3:14 PM