ELECTRICAL COMPONENTS
8-76
EAS27990
CHECKING THE BULBS AND BULB
SOCKETS
TIP
Do not check any of the lights that use LEDs.
Check each bulb and bulb socket for damage or
wear, proper connections, and also for continuity
between the terminals.
Damage/wear
→
Repair or replace the bulb,
bulb socket or both.
Improperly connected
→
Properly connect.
No continuity
→
Repair or replace the bulb, bulb
socket or both.
Types of bulbs
The bulbs used on this vehicle are shown in the
illustration.
• Bulbs “a” and “b” are used for the headlights
and usually use a bulb holder that must be de-
tached before removing the bulb. The majority
of these types of bulbs can be removed from
their respective socket by turning them coun-
terclockwise.
• Bulbs “c” are used for turn signal and tail/brake
lights and can be removed from the socket by
pushing and turning the bulb counterclockwise.
Checking the condition of the bulbs
The following procedure applies to all of the
bulbs.
1. Remove:
• Bulb
WARNING
EWA37P1018
Since headlight bulbs get extremely hot,
keep flammable products and your hands
away from them until they have cooled
down.
NOTICE
ECA37P1039
• Be sure to hold the socket firmly when re-
moving the bulb. Never pull the lead, other-
wise it may be pulled out of the terminal in
the coupler.
• Avoid touching the glass part of a 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 adverse-
ly affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
2. Check:
• Bulb (for continuity)
(with the pocket tester)
No continuity
→
Replace.
TIP
Before checking for continuity, set the pocket
tester to “0” and to the “
Ω
×
1” range.
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a. Connect the positive tester probe to terminal
“1” and the negative tester probe to terminal
“2”, and check the continuity.
b. Connect the positive tester probe to terminal
“1” and the negative tester probe to terminal
“3”, and check the continuity.
c. If either of the readings indicate no continuity,
replace the bulb.
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Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Summary of Contents for YP125R
Page 1: ...SERVICE MANUAL 2010 37P F8197 E0 YP125R YP250R...
Page 6: ......
Page 8: ......
Page 28: ...SPECIAL TOOLS 1 19...
Page 30: ...COOLING SYSTEM DIAGRAMS YP250R 2 73 CABLE ROUTING YP250R 2 75...
Page 31: ......
Page 55: ...LUBRICATION POINTS AND LUBRICANT TYPES YP125R 2 24...
Page 62: ...CABLE ROUTING YP125R 2 31 Front fork front view A 1 1 1 1 2 2 2 3 4 5 6 7...
Page 66: ...CABLE ROUTING YP125R 2 35 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7...
Page 70: ...CABLE ROUTING YP125R 2 39 Engine left side view 2 1 3 4 A 3...
Page 72: ...CABLE ROUTING YP125R 2 41 Handlebar top view A 1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17...
Page 76: ...CABLE ROUTING YP125R 2 45 Tail brake light top view 2 1 3 4 B A 1 5 6...
Page 103: ...LUBRICATION POINTS AND LUBRICANT TYPES YP250R 2 72...
Page 108: ...CABLE ROUTING YP250R 2 77 Front fork front view 1 1 2 3 4 5 6 7 1 2 A 1 2...
Page 112: ...CABLE ROUTING YP250R 2 81 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7 8 B...
Page 116: ...CABLE ROUTING YP250R 2 85 Engine left side view 2 1 3 4 5 6 B A 3 7...
Page 118: ...CABLE ROUTING YP250R 2 87 Handlebar top view A 1 2 3 4 4 5 6 7 8 8 9 10 11 12 13 14 15 16 17...
Page 122: ...CABLE ROUTING YP250R 2 91 Tail brake light top view 2 1 3 4 B A 1 5 6 8 7...
Page 124: ...CABLE ROUTING YP250R 2 93...
Page 127: ......
Page 172: ...ELECTRICAL SYSTEM 3 45...
Page 175: ......
Page 240: ...REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM 4 65...
Page 245: ......
Page 305: ...CRANKSHAFT YP125R 5 60 a 1...
Page 366: ...CRANKSHAFT YP250R 5 121...
Page 394: ...THROTTLE BODY 7 11...
Page 397: ......
Page 411: ...CHARGING SYSTEM 8 14...
Page 423: ...SIGNALING SYSTEM 8 26...
Page 427: ...COOLING SYSTEM 8 30...
Page 453: ...FUEL INJECTION SYSTEM 8 56...
Page 457: ...FUEL PUMP SYSTEM 8 60...
Page 466: ...IMMOBILIZER SYSTEM 8 69 a Light on b Light off...
Page 467: ...IMMOBILIZER SYSTEM 8 70...
Page 495: ......
Page 496: ...YAMAHA MOTOR ESPA A S A...