SPARK
PLUG
SERVICE
In order to service the spark plug, you
will
need
a
spark plug wrench
(commercially available).
Recommended spark plugs:
BPRGES (NGK)
W20EPR-U (DENSO)
To
ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
If the engine has been running, the muffler
will
be very hot. Be careful
not to touch the muffler.
1.
Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3.
Use
a
spark plug wrench to remove the spark plug.
PLUG
WRENCH
SPARK PLUG CAP
4.
Vis
ually
inspect the spark plug. Discard
it
if the insulator is cracked
or chipped. Clean the spark plug with
a
wire brush if
it
is to be
reused.
5.
Measure the plug gap with
a
feeler
0.028-0.031
in
gauge.
Correct as necessary by carefully
bending the side electrode.
The gap should be:
0.028-0.031
in
(0.70-0.80
mm)
(0.70-0.80
mm)
37
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