Honda F660 Manuel De L'utilisateur page 45

This symbol on the battery means that this product must not be
treated as household waste.
An improperly disposed of battery can be harmful to the environment
and human health.
Always confirm local regulations for battery disposal.
11. Headlight bulb replacement (EE Type only)
1. Turn the screw countorclockwise and open the top cover.
2. Pull off the rubber boot, then remove the bulb by pushing and
turning it counterclockwise.
Install a new bulb by aligning the boss of the bulb with the groove of
3.
the bulb socket.
4. Reinstall the removed parts in the reverse order of disassembly.
Replacement bulb: 12V 25W
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SCREW
TOP COVER
RUBBER BOOT
BULB SOCKET
HEADLIGHT BULB