Spark Plug Service - Honda HS622 Owner's Manual

Spark Plug Service
Recommended spark plug:
BPR5ES (NGK)
Wl GEPR-U (NIPPONDENSO)
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.
SPARK PLUG WRENCH
2. Clean any dirt from around the spark plug base.
3. Use the wrench supplied in the tool kit to remove the spark plug.
4. Inspect the spark plug. Discard it if the electrodes are worn or if the
insulator is cracked or chipped. If it is to be reused, clean the
electrode and insulator with a wire brush.
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