Yamaha YFM45FAR Service Manual page 352

CHECKING THE BULBS AND BULB SOCKETS
WARNING
Since the headlight bulb gets extremely
hot, keep flammable products and your
hands away from the bulb until it has
cooled down.
CAUTION:
Be sure to hold the socket firmly when
G
removing the bulb. Never pull the lead,
otherwise it may be pulled out of the
terminal in the coupler.
Avoid touching the glass part of the
G
headlight bulb to keep it free from oil,
otherwise the transparency of the glass,
the life of the bulb and the luminous flux
will be adversely affected. If the headlight
bulb gets soiled, thoroughly clean it with
a cloth moistened with alcohol or lacquer
thinner.
2.Check:
Bulb (for continuity)
G
(with the pocket tester)
No continuity → Replace.
Pocket tester
P/N. YU-03112, 90890-03112
NOTE:
Before checking for continuity, set the pocket
tester to "0" and to the "Ω × 1" range.
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a.Connect the tester positive probe to terminal
1 and the tester negative probe to terminal
2, and check the continuity.
b.Connect the tester positive probe to terminal
1 and the tester negative probe to terminal
3, and check the continuity.
c.If either of the readings indicate no
continuity, replace the bulb.
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