Honda Shadow Phantom 750, Owner'S Manual

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(2)
(3)
(2) spark plug gap (3) side electrode
109
Spark Plugs
Servicing Your Honda
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.
Tighten each spark plug:
With the plug washers attached, thread
the spark plugs in by hand to prevent
cross-threading.
Reinstall the spark plug caps. Take care
to avoid pinching any cables or wires.
If the old plug is good:
1/8 turn after it seats.
If installing a new plug, tighten it
twice to prevent loosening:
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.
8.
7.
6.
1/2
3/4
a)
c)
b)
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