Honda CMX250C REBEL 2007 Owner's Manual page 103

Spark Plugs
7. Tighten each spark plug:
If the old plug is good:
1/8 turn after it seats.
If installing a new plug, tighten it
twice to prevent loosening:
a) First, tighten the plug:
NGK:
DENSO: 3/4
b) Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
Improperly tightened spark plugs 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 caps. Take care
to avoid pinching any cables or wires.
94
Servicing Your Honda
1 turn after it seats.
turn after it seats.