Spark Plug Service - Honda GXV670 Owner's Manual

SERVICING YOUR HONDA ENGINE
SPARK PLUG SERVICE
Recommended spark plugs: ZGR5A (NGK)
m
J 16CR-U (DENSO)
Incorrect spark plugs can cause engine damage.
1. Disconnect the spark plug caps, and remove
L
the spark plug area.
any dirt from around
2. Remove the spark plugs with a 13/16-inch spark plug wrench.
SPARK PLUG CAP
SPARK PLUG WRENCH
3. Inspect the spark plugs. Replace
them if the electrodes are worn,
or if the insulator is cracked or
chipped. Clean the spark plugs
with a wire brush if you are going
to reuse them.
*'
4. Measure the spark plug electrode
gap with a suitable gauge. The
g a p s h o u l d b e 0.028-0.031 i n
(0.70-0.80 mm). Correct the gap,
if necessary, by carefully bending
the side electrode.
5. Install the spark plug carefully, by
hand, to avoid cross-threading.
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