Yamaha Raptor YFM660RT Owner's Manual page 161

1. Do not touch the glass part of the bulb.
CAUTION:
_
Do not touch the glass part of the head-
light bulb to keep it free from oil, otherwise
the transparency of the glass, the luminos-
ity of the bulb, and the bulb life will be ad-
versely affected. Thoroughly clean off any
dirt and fingerprints on the headlight bulb
using a cloth moistened with alcohol or
thinner.
_
9. Install the headlight bulb holder cover.
CAUTION:
_
Make sure the headlight bulb holder cover
is securely fitted over the bulb holder and
seated against the reflector.
_
10. Align the projections on the headlight unit
with the holders, install the headlight unit
into the case, and then install the screw.
1. Headlight unit
11. Place the headlight cover in the original
position, and then install the screw.
8-54
2. Headlight case