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−−0.031 0.035 in (0.80 0.90 mm)
(13) side electrode(12) spark plug gap
(12)
(13)
126
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.
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:
With the plug washers attached, thread
the spark plugs in by hand to prevent
cross-threading.
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:
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.
10.
11.
a)
b)
c)
3/4
1/2
12
13
9.
１０／０９／０８ １５：５５：３９ ３１ＭＦＹ６１０ ０１３５
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