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SERVICING YOUR HONDA ENGINE
SPARK PLUG SERVICE
Recommended
spark plug: CR5HSB(NGK)
U16FSRUB
(DENSO)
An incorrect
spark plug can cause engine damage.
1. Disconnect
the spark plug cap, and remove any dirt from around the
spark plug area.
2. Remove the spark plug with a 5/8-inch spark plug wrench.
SPARK PLUG
SPARK PLUG CAP
3. Inspect the spark plug. Replace it if
the electrodes
are worn,
or if the
insulator
is cracked
or chipped.
Clean the spark plug with
a wire
brush if you are going to reuse it.
0.024-0.028
in
(0.60-0.70
mm)
4. Measure
the spark
plug electrode
gap with a suitable
gauge. The gap
should
be 0.024-0.028
in (O.SO-
0.70
mm).
Correct
the
gap,
if
necessary,
by carefully
bending
the
side electrode.
5. Install the spark plug carefully,
by
hand, to avoid cross-threading.
31
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