Spark Plug - Honda HRA214 Owner's Manual

SPARK PLUG
Standard
Plug:
BPSES, BPRSES (NGK)
W 16EP-U, W 16EPR-U (ND)
1. Disconnect the cap and remove the spark plug.
2. Visually inspect the plug. Discard the plug if it is
heavily deposited or if the insulator is cracked or
chipped.
SPARK PLUG WRENCH
3. Measure the plug gap with a wire-type feeler gauge;
it should be 0.6-0.7 mm (0.024-0.028 in). If
adjustment is necessary, bend the side electrode
carefully.
4. Make sure the sealing washer is in good condition,
then thread the spark plug in by hand until it seats.
5. Use the wrench to tighten a new plug l/2 turn
further to compress the washer. If you are reusing
the plug it should only take l/8-1/4 turn after the
plug seats.
0.6-0.7 mm
(0.024-0.026 in.)
6. Replace the spark plug cap.
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