Checking The Bulbs And Bulb Sockets; Types Of Bulbs; Checking The Condition Of The Bulbs - Yamaha FZ8NA Service Manual

EAS27990
CHECKING THE BULBS AND BULB SOCK-
ETS
Check each bulb and bulb socket for damage
or wear, proper connections, and also for conti-
nuity 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" is used for the headlights and usu-
ally use a bulb holder that must be detached
before removing the bulb. The majority of
these types of bulbs can be removed from
their respective socket by turning them coun-
terclockwise.
• Bulbs "b" and "c" are used for turn signal and
tail/brake lights and can be removed from the
socket by pushing and turning the bulb coun-
terclockwise.
• Bulbs "d" is used for meter and indicator
lights and can be removed from their respec-
tive socket by carefully pulling them out.
ELECTRICAL COMPONENTS

Checking the condition of the bulbs

The following procedure applies to all of the
bulbs.
1. Remove:
• Bulb
EWA13320
WARNING
Since the headlight bulb gets extremely
hot, keep flammable products and your
hands away from the bulb until it has
cooled down.
ECA14380
• Be sure to hold the socket firmly when
removing the bulb. Never pull the lead,
otherwise it may be pulled out of the ter-
minal in the coupler.
• Avoid touching the glass part of the head-
light bulb to keep it free from oil, other-
wise 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 it with a cloth
moistened with alcohol or lacquer thin-
ner.
2. Check:
• Bulb (for continuity)
(with the pocket tester)
No continuity → Replace.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
TIP
Before checking for continuity, set the pocket
tester to "0" and to the "Ω × 1" range.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the positive tester probe to termi-
nal "1" and the negative tester probe to ter-
minal "2", and check the continuity.
b. Connect the positive tester probe to termi-
nal "1" and the negative tester probe to ter-
minal "3", and check the continuity.
c. If either of the readings indicate no continu-
ity, replace the bulb.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
8-184