Spark Plug Service - Honda BF5A Owner's Manual

SPARK PLUG SERVICE
Recommended spark plug: BPRSES (NGK), WlGEPR-U (DENSO)
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W14EPR-iJ (DENSO)
Remove the engine cover.
Remove the spark plug cap.
Use the wrench supplied in the tool kit to remove the spark plug.
Visually inspect the spark plug. Discard the spark plug if there is apparent
wear, or if the insulators are cracked or chipped. Clean the spark plug with
a wire brush if they are to be reused.
Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gaps should be: 0.028 - 0.031 in (0.7 - 0.8 mm)
PLUG WRENCH
0.020 - 0.031 in
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