lock YAMAHA YZF-R6 2003 User Guide

Page 38 of 130

INSTRUMENT AND CONTROL FUNCTIONS
3-21
3
EAU04489
Helmet holders The helmet holders are located on the
bottom of the passenger seat.
To secure a helmet to a helmet hold-
er
1. Remove the passenger seat. (See
page 3-20 for passenger seat re-
moval and installation proce-
dures.)
2. Attach the helmet to a helmet
holder, and then securely install
the passenger seat.
EWA00015
WARNING
_ Never ride with a helmet attached to
a helmet holder, since the helmet
may hit objects, causing loss of
control and possibly an accident. _
ECA00128
CAUTION:_ Some helmets may contact the muf-
fler when secured to the right side
helmet holder because of their size
or shape. Be sure that your helmet
does not contact the muffler when it
is secured to the helmet holder. _To release a helmet from a helmet
holder
Remove the passenger seat, remove
the helmet from the helmet holder, and
then install the seat.
EAU04949
Storage compartment The storage compartment is located
under the passenger seat. (See page
3-20 for passenger seat removal and
installation procedures.)
This storage compartment is designed
to hold a genuine Yamaha U-LOCK.
(Other locks may not fit.)
EWA00005
WARNING
_ 
Do not exceed the load limit of
3 kg for the storage compart-
ment.

Do not exceed the maximum
load of 193 kg for the vehicle.
_
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INSTRUMENT AND CONTROL FUNCTIONS
3-22
3
To place a U-LOCK in the storage
compartment:
1. Remove the rubber cap from the
hole at the bottom of the storage
compartment, and then store it in a
safe place to prevent losing the
cap.
2. Insert the ends of the U-LOCK bar
into the holes at the bottom of the
storage compartment as shown.
3. Place the lock of the U-LOCK in
the location shown.4. Securely fasten the U-LOCK bar
and lock with the strap as shown.
NOTE:_ 
When the U-LOCK is not in the
storage compartment, be sure to
cover the hole at the bottom of the
storage compartment with the rub-
ber cap.

When storing items in the storage
compartment, be sure to wrap
them in a plastic bag to prevent
losing them.
_
1. Hole (× 3)
2. Rubber cap
3. U-LOCK bar (optional)
4. Lock of U-LOCK (optional)
5. Strap (× 2)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
EWA00071
WARNING
_ 
Before placing the fuel tank in
the original position, make sure
that the fuel hoses are not dam-
aged. If any fuel hose is dam-
aged, do not start the engine
but have a Yamaha dealer re-
place the hose, otherwise fuel
may leak.

Make sure that the fuel hoses
are properly connected and
routed, and not pinched.

Be sure to place the fuel tank
breather hose and the fuel tank
overflow hose in the original po-
sition.
_12. Install the rider seat.
EAU01335
Air intake duct Check that the screen of the intake
duct is not blocked. Clean the screen if
necessary.1. Air intake duct
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
NOTE:@ If the specified clutch lever free play
cannot be obtained as described
above, proceed as follows. @1. Fully turn the adjusting bolt at the
clutch lever in direction
a to loos-
en the clutch cable.
2. Remove cowling A. (See page 6-5
for cowling removal and installa-
tion procedures.)
3. Loosen the locknut at the crank-
case.
4. To increase the clutch lever free
play, turn the adjusting nut in di-
rection
a. To decrease the clutch
lever free play, turn the adjusting
nut in direction
b.
5. Tighten the locknut.
6. Install the cowling.
1. Locknut
2. Clutch lever free play adjusting nut
(crankcase)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU04856
Checking the 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 flu-
id 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 brake
fluid reservoir is level.

Use only the recommended quali-
ty 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 brake fluid reservoir when
refilling. 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
gradually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level markFront
1. Minimum level mark
Recommended brake fluid: DOT 4Rear
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU03608
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
adjusting bolt on each side of the
swingarm in direction
a. To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction
b, and then
push the rear wheel forward.
NOTE:_ Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-
tion for proper wheel alignment. _
EC000096
CAUTION:_ Improper drive chain slack will over-
load the engine as well as other vital
parts of the motorcycle and can lead
to chain slippage or breakage. To
prevent this from occurring, keep
the drive chain slack within the
specified limits. _3. Tighten the locknuts, and then
tighten the axle nut to the specified
torque.
EAU03006
Lubricating the drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
EC000097
CAUTION:@ The drive chain must be lubricated
after washing the motorcycle or
riding in the rain. @1. Clean the drive chain with kero-
sene and a small soft brush.
ECA00053
CAUTION:@ To prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents. @2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Alignment marks
Tightening torque:
Axle nut:
110 Nm (11.0 m·kgf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU04981
Replacing the fuses The main fuse and fuse box 1 are locat-
ed under the rider seat. (See page 3-19
for rider seat removal and installation
procedures.)Fuse box 2 is located under panel B.
(See page 6-7 for panel removal and
installation procedures.)If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.1. Spare main fuse
2. Main fuse
3. Fuse box 1
4. Electronic fuel injection fuse
5. Turn signal light, taillight, license plate light,
auxiliary light and hazard fuse
6. Spare fuse
1. Fuse box 2
2. Headlight fuse
3. Radiator fan fuse
4. Ignition fuse
5. Signaling system fuse
6. Odometer, clock and immobilizer system fuse
(backup fuse)
7. Spare fuse (× 2)
Specified fuses:
Main fuse: 40 A
Fuse box 1:
Electronic fuel injection
fuse: 15 A
Turn signal light,
taillight, license plate
light, auxiliary light and
hazard fuse: 10 A
Fuse box 2:
Headlight fuse: 20 A
Signaling system fuse: 15 A
Radiator fan fuse: 15 A
Ignition fuse: 15 A
Odometer, clock and
immobilizer system fuse
(backup fuse): 10 A
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
EC000103
CAUTION:_ Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire. _3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU04954
Replacing a headlight bulb This motorcycle is equipped with
quartz bulb headlights. If a headlight
bulb burns out, replace it as follows.
1. Remove panel B (if replacing the
left headlight bulb) or panel A (if
replacing the right headlight bulb).
(See page 6-7 for panel removal
and installation procedures.)
2. Remove the headlight bulb cover
by turning it counterclockwise.3. Disconnect the headlight coupler.1. Headlight bulb cover
1. Headlight coupler
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
66. Connect the headlight coupler.
7. Install the headlight bulb cover by
turning it clockwise.
8. Install the panel.
9. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU04982
Replacing an auxiliary light
bulb This motorcycle is equipped with two
auxiliary lights. If an auxiliary light bulb
burns out, replace it as follows.
1. Remove the auxiliary light bulb
cover by removing the quick fas-
tener.NOTE:_ Remove the quick fastener by pushing
the center pin in with a screwdriver,
then pulling the fastener out. _
2. Remove the socket (together with
the bulb) by pulling it out.
3. Remove the defective bulb by pull-
ing it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the auxiliary light bulb cover
by installing the quick fastener.
1. Auxiliary light bulb cover
2. Quick fastener
1. Auxiliary light bulb
2. Auxiliary light bulb socket
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-44
6
NOTE:_ To install the quick fastener, push the
center pin out so that it will protrude
from the fastener head, insert the fas-
tener into the auxiliary light bulb cover,
and then push the protruding pin in until
it is flush with the fastener head. _
EAU03730
Tail/brake light This motorcycle is equipped with an
LED type of tail/brake light.
If the tail/brake light does not come on,
have a Yamaha dealer check it.
EAU03497
Replacing a turn signal light
bulb 1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it
counterclockwise.
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 the
screw.
ECA00065
CAUTION:@ Do not overtighten the screw, other-
wise the lens may break. @
1. Quick fastener
2. Pin
After removal
Before installation
1. Screw
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