Honda F660 Manuel De L'utilisateur page 39

4. Fuel strainer cup cleaning
Gasoline is extremely flammable and is explosive under certain
conditions. Do not smoke or allow flames or sparks in the area.
Turn the fuel valve to the OFF position and remove the fuel strainer
cup and the O-ring.
Wash the removed parts in solvent, dry them thoroughly and reinstall
them securely.
Turn the fuel valve ON and check for leaks.
5. Spark plug service
Recommended spark plug:
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
1. Remove the spark plug cap and use a spark plug wrench to remove
the plug.
If the engine has been running, the muffler will be very hot. Be careful
not to touch the muffler.
PLUG WRENCH
36
LOCK NUT
BPR5ES (NGK)
W16EPR-U (DENSO)
O O F F F F
O-RING
FUEL STRAINER CUP