Honda NSS250 2007, Owner'S Manual, Page: 127 / 233

118
Spark Plug
Servicing Your Honda
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.
Tighten the spark plug:
First, tighten the plug:
NGK:
turn after it seats.
DENSO: turn after it seats.
Then loosen the plug.
Next, tighten the plug again:
1/8 turn after it seats.
Reinstall the spark plug cap. Take care
to avoid pinching any cables or wires.
Reinstall the maintenance lid.
If installing a new plug, tighten it twice
to prevent loosening:
8.
9.
10.
1/2
3/4
a)
b)
c)
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