Spark Plug
7. Tighten each spark plug:
0 If the old plug is good:
1/8 turn after it seats.
0 If installing a new plug, tighten it
twice to prevent loosening:
a) First, tighten the plug:
NGK:
1/2 turn after it seats.
DENSO: 3/4 turn after it seats.
b) Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
An improperly tightened spark plug can
damage the engine. If a plug is too loose,
a piston may be damaged. If a plug is too
tight, the threads may be damaged.
8. Reinstall the spark plug cap. Take care
to avoid pinching any cables or wires.
94
Servicing Your Honda