Honda HS621 Bedienungsanleitung Seite 41

Spark plug cleaning and adjustment −
The spark plug must be periodically cleaned and adjusted to provide
reliable ignition.
INTERVAL AT WHICH THE SPARK PLUG MUST BE CLEANED:
Every year, before operation.
CLEANING PROCEDURE:
If the engine has been running, the muffler will be very hot. Be careful
not to touch the muffler while it is hot.
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
1. Remove the spark plug cover then remove the spark plug cap.
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. Replace 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.
SPARK PLUG COVER
38
SPARK PLUG WRENCH