Honda 2006 CB600F Owner's Manual page 139

Spark Plugs
9. Check the spark plug gap ( ) of each
new plug, using a wire-type feeler
gauge. If adjustment is necessary, bend
the side electrode ( ) carefully.
The gap should be:
0.031 0.035 in (0.80 0.90 mm)
(11)
(10) spark plug gap (11) side electrode
10. With the plug washers attached, thread
the spark plugs in by hand to prevent
cross-threading.
11. Tighten the spark plug:
If the old plug is good:
1/8 turn after it seats.
130
Servicing Your Honda
10
11
(10)
If installing a new plug, tighten it
twice to prevent loosening:
a) First, tighten the plug:
NGK: 1/2 1/2 1/2
DENSO:
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.
12. Reinstall the spark plug caps. Take care
to avoid pinching any cables or wires.
13. Install the remaining parts in the reverse
order of removal.
turn after it seats.
1 turn after it seats.