Checking Of Bulbs (For Headlight); Checking Bulbs Condition - Yamaha YFM250XL(C) Service Manual

8
CHECKING OF BULBS
CHECKING OF BULBS
(FOR HEADLIGHT)

CHECKING BULBS CONDITION

1.Remove the bulb.
CAUTION:
ACHTUNG:
Be sure to hold the socket firmly when
removing the bulb. Never pull the lead.
Otherwise, the lead may be pulled off the
terminal in the coupler.
WARNING
Keep flammable products and your hands
away from the headlight bulb while it is on.
It will be hot. Do not touch the bulb until it
cools down.
2.Check the bulb terminals for continuity.
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Checking steps:
Set the pocket tester selector to the "Ω ×
1".
Connect the tester leads to the respective
bulb terminals.
First check the continuity between termi-
nals 1 and 2 by connecting the tester (+)
lead to terminal 1 and the tester (–) lead
to terminal 2. Then check the continuity
between terminals 1 and 3 by connect-
ing the tester (+) lead still to terminal 1
and the tester (–) lead to terminal 3. If the
tester shows "∞" in either case, replace
the bulb.
*********************************
3.Check the bulb socket by installing a
proven bulb to it. As in the checking of
bulbs, connect the pocket tester leads to
the respective leads of the socket and
check for continuity in the same manner
as mentioned above.
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– +
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