HONDA EM3800SX - Manual (Page 43)

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Recommended spark plugs:
Spark Plug Service
SPARK PLUG WRENCH
SPARK PLUG CAP
SEALING WASHER
0.028 0.031 in
(0.7 0.8 mm)
In order to service the spark plug, you will need a spark plug wrench
(commercially available).
BPR5ES (NGK) W16EPR-U (DENSO)
Visually inspect the spark plug.
Discard it if the insulator is
cracked, chipped, or fouled.
Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
c a r e f u l l y b e n d i n g t h e s i d e
electrode.
The gap should be:
0.028 0.031 in (0.7 0.8 mm)
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
An incorrect spark plug can cause engine damage.
If the engine has been running, let it to cool before servicing the spark
plug.
Remove the spark plug cap.
Clean any dirt from around the spark plug base.
Use a spark plug wrench to remove the spark plug. 1.
2.
3.
4.
5.
,
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