2007 YAMAHA CYGNUS 125 lock

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
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3
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5
67
8
9
set.

EAU32343
Checking the front brake fluid
level
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.
Observe these precautions:

When checking the fluid level,
make sure that the top of the mas-ter cylinder is level by turning the
handlebars.

Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.

Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.

Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.

Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.

As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
1. Minimum level mark
ZAUM00**
1

Recommended brake fluid:
DOT 4

PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
2
3
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67
8
9 fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with al-

cohol or thinner.
6. Install the headlight bulb cover,
and then connect the coupler.
7. Install the panel.
8. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAUT1891
Replacing a front turn signal
light bulb
CAUTION:

ECA10670
It is advisable to have a Yamaha
dealer perform this job.
1. Place the scooter on the center-
stand.
2. Remove panel A. (See page 6-6.)
3. Remove the socket (together with
the bulb) by turning it counter-
clockwise.
4. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.5. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
6. Install the socket (together with the
bulb) by turning it clockwise.
7. Install the panel.
1. Turn signal light bulb
2. Socket
ZAUM00**
1
2

PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
1
2
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9

EAUT1922
Replacing the tail/brake light
bulb or a rear turn signal light
bulb
Tail/brake light bulb
1. Remove the tail/brake light lens by
removing the screws.
2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing thescrews.
Rear turn signal light bulb
1. Remove the tail/brake light lens by
removing the screws.
2. Remove the turn signal light lens
by removing the screws.
3. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Install the turn signal light lens by
installing the screws.
6. Install the tail/brake light lens by in-
stalling the screws.
CAUTION:

ECA10680
Do not overtighten the screws, oth-
erwise the lens may break.
EAUT1962
Replacing an auxiliary light
bulb
This model is equipped with two auxil-
iary lights. If an auxiliary light bulb burns
out, replace it as follows.
1. Remove panel B. (See page 6-6.)
2. Remove the auxiliary light socket
(together with the bulb) by turning
it counterclockwise.
3. Remove the defective bulb by pull-
ing it out.
4. Insert a new bulb into the socket.
5. Install the auxiliary light socket (to-
gether with the bulb) by turning it
clockwise.
1. Tail/brake light lens
2. Turn signal light lens
3. Rear turn signal light bulb
4. Tail/brake light bulb
ZAUM00**3
1
2
4

1. Auxiliary light bulb
2. Socket
ZAUM00**
12