Checking The Fuses - Yamaha WR250R Service Manual

Checking the condition of the bulb sockets
The following procedure applies to all of the bulb
sockets.
1. Check:
Bulb socket (for continuity)
G
(with the pocket tester)
No continuity → Replace.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
NOTE:
Check each bulb socket for continuity in the
same manner as described in the bulb section;
however, note the following.
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a. Install a good bulb into the bulb socket.
b. Connect the pocket tester probes to the re-
spective leads of the bulb socket.
c. Check the bulb socket for continuity. If any of
the readings indicate no continuity, replace
the bulb socket.
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EAS28000

CHECKING THE FUSES

The following procedure applies to all of the fus-
es.
ECA13680
CAUTION:
To avoid a short circuit, always set the main
switch to "OFF" when checking or replacing
a fuse.
1. Remove:
Side cover (left)
G
Air scoop (left)
G
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
Main fuse "1"
G
Fuse box "2"
G
1
ELECTRICAL COMPONENTS
2
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a. Connect the pocket tester to the fuse and
check the continuity.
NOTE:
Set the pocket tester selector to "Ω × 1".
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. If the pocket tester indicates "∞", replace the
fuse.
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3. Replace:
Blown fuse
G
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a. Set the main switch to "OFF".
b. Install a new fuse of the correct amperage
rating.
c. Set on the switches to verify if the electrical
circuit is operational.
d. If the fuse immediately blows again, check
the electrical circuit.
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