YAMAHA YZF-R6 2008 Manual Online

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
EAU23290
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU23441
Battery This model is equipped with a sealed-
type (MF) battery, which does not re-
quire any maintenance. There is no
need to check the electrolyte or to add
distilled water.
To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the vehicle is equipped with optional
electrical accessories.
WARNING
EWA10760


Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.


Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.


KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OFCHILDREN.
To store the battery
1. If the vehicle will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
2. If the battery will be stored for more
than two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in-
stallation.4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
CAUTION:
ECA10630


Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.


To charge a sealed-type (MF)
battery, a special (constant-volt-
age) battery charger is required.
Using a conventional battery
charger will damage the battery.
If you do not have access to asealed-type (MF) battery charg-
er, have a Yamaha dealer
charge your battery.
1. Negative battery lead (black)
2. Battery
3. Positive battery lead (red)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
6
EAU23704
Replacing the fuses The main fuse, the fuel injection system
fuse, and fuse box 1 are located under
the rider seat. (See page 3-19.)
Fuse box 2 is located under panel A.
(See page 6-7.)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.
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly afire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
1. Main fuse
2. Fuel injection system spare fuse
3. Fuel injection system fuse
4. Fuse box 1
5. Backup fuse (for odometer, clock and immo-
bilizer system)
6. ETV (Electronic Throttle Valve) fuse
7. Spare fuse
1. Fuse box 2
2. Left radiator fan fuse
3. Right radiator fan fuse
4. Signaling system fuse
5. Ignition fuse
6. Taillight fuse
7. Headlight fuse
8. Spare fuse
Specified fuses:
Main fuse:
50.0 A
Fuel injection system fuse:
15.0 A
Electronic throttle valve fuse:
7.5 A
Backup fuse:
7.5 A
Radiator fan fuse:
15.0 A × 2
Ignition fuse:
15.0 A
Signaling system fuse:
10.0 A
Taillight fuse:
7.5 A
Headlight fuse:
15.0 A
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
64. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU39010
Replacing a headlight bulb This model is equipped with quartz bulb
headlights. If a headlight bulb burns
out, replace it as follows.
1. Remove the headlight bulb cover
by turning it counterclockwise.
2. Disconnect the headlight coupler.3. Unhook the headlight bulb holder,
and then remove the defective
bulb.
WARNING
EWA10790
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooleddown.
4. Place a new headlight bulb into po-
sition, and then secure it with the
bulb holder.CAUTION:
ECA10650
Take care not to damage the follow-
ing parts:
1. Headlight bulb cover
1. Headlight coupler
1. Headlight bulb holder
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6


Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the bulb, and the bulb life will
be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.


Headlight lens
Do not affix any type of tinted
film or stickers to the headlight
lens.
Do not use a headlight bulb of awattage higher than specified.5. Connect the headlight coupler.
6. Install the headlight bulb cover by
turning it clockwise.
7. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU24181
Tail/brake light This model is equipped with an LED-
type tail/brake light.
If the tail/brake light does not come on,
have a Yamaha dealer check it.
1. Do not touch the glass part of the bulb.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU24202
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 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 the
screw.
CAUTION:
ECA11190
Do not overtighten the screw, other-wise the lens may break.
EAU24310
Replacing the license plate
light bulb 1. Remove the license plate light unit
by removing the screws.
2. Remove the socket (together with
the bulb) by pulling it out.
1. Screw
1. Turn signal light bulb
1. Screw
1. License plate light bulb
2. License plate light unit
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6 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 license plate light unit by
installing the screws.
EAU44940
Auxiliary light This model is equipped with an LED-
type auxiliary light.
If the auxiliary light does not come on,
have a Yamaha dealer check it.
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
1. Auxiliary light
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
6a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAU33921
To remove the front wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the wheel axle pinch bolts,
the axle bolt, and then the brake
caliper bolts.
2. Lift the front wheel off the ground
according to the procedure on
page 6-38.3. Remove the brake hose holder on
each side by removing the bolt and
nut.
4. Remove the brake caliper on each
side by removing the bolts.
5. Remove the axle bolt, push the
wheel axle out from the left side,
and then remove the wheel.
1. Front wheel axle pinch bolt
1. Brake hose holder
2. Bolt and nut
3. Brake caliper bolt
4. Brake caliper
5. Axle bolt
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
CAUTION:
ECA11050
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will beforced shut.
EAU33933
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle.
3. Install the axle bolt, and then lower
the front wheel so that it is on the
ground.
4. Install the brake calipers by install-
ing the bolts, and then tightening
them to the specified torque.
NOTE:Make sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brakediscs.
5. Install the brake hose holders by
installing the bolts and nuts.
6. Tighten the axle bolt to the speci-
fied torque.NOTE:While tightening the axle bolt, hold the
wheel axle with a 19-mm hexagonwrench to keep it from turning.
7. Tighten wheel axle pinch bolt B,
then pinch bolt A to the specified
torque.8. Retighten pinch bolt B to the spec-
ified torque.
9. Tap the outer side of the right fork
leg with a rubber mallet to align it
with the end of the wheel axle.
10. Tighten wheel axle pinch bolt D,
then pinch bolt C to the specified
torque.
11. Retighten pinch bolt D to the spec-
ified torque.
1. Wheel axle
Tightening torque:
Brake caliper bolt:
35 Nm (3.5 m·kgf, 25 ft·lbf)
Tightening torque:
Axle bolt:
91 Nm (9.1 m·kgf, 66 ft·lbf)
1. Front wheel axle pinch bolt A
2. Front wheel axle pinch bolt B
3. Front wheel axle pinch bolt C
4. Front wheel axle pinch bolt D
Tightening torque:
Wheel axle pinch bolt:
21 Nm (2.1 m·kgf, 15 ft·lbf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
612. While applying the front brake,
push down hard on the handlebar
several times to check for proper
fork operation.
EAU25080
Rear wheel
EAU44950
To remove the rear wheel
WARNING
EWA10820


It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no dangerof it falling over.
1. Loosen the axle nut.2. Lift the rear wheel off the ground
according to the procedure on
page 6-38.
3. Remove the axle nut.
4. Loosen the locknut on each side of
the swingarm.
5. Turn the drive chain slack adjust-
ing bolts in direction (a) to loosen
the drive chain enough so it can be
removed from the rear sprocket,
and then push the wheel forward.
6. Remove the drive chain from the
rear sprocket.
Tightening torque:
Wheel axle pinch bolt:
21 Nm (2.1 m·kgf, 15 ft·lbf)
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Brake caliper
5. Brake caliper bracket
U13SE0E0.book Page 41 Monday, August 27, 2007 4:53 PM