2003 YAMAHA YZF-R6 lock

INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
EAU00185
CAUTION:@ Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-
es or plastic parts. @
EAU04940
ECA00104
CAUTION:_ Use only unleaded gasoline. The
use of leaded gasoline will cause se-
vere damage to internal engine
parts, such as the valves and piston
rings, as well as to the exhaust sys-
tem. _
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
EAU02955
Fuel tank breather hose Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary. Recommended fuel:
PREMIUM UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
17 L
Amount remaining when the fuel
level warning light comes on:
3.5 L
1. Fuel tank breather hoseLeft side
U5SLE0.book Page 18 Wednesday, September 11, 2002 11:46 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-20
3
Passenger seat
To remove the passenger seat
1. Insert the key into the seat lock,
and then turn it counterclockwise.
2. While holding the key in that posi-
tion, lift the front of the passenger
seat and pull it forward.To install the passenger seat
1. Insert the projection on the rear of
the passenger seat into the seat
holder as shown, and then push
the front of the seat down to lock it
in place.
2. Remove the key.NOTE:_ Make sure that the seats are properly
secured before riding. _
1. Passenger seat lock
2. Unlock.Left side
1. Projection
2. Seat holder
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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.
_
1. Helmet holder (× 2)U5SLE0.book Page 21 Wednesday, September 11, 2002 11:46 AM

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)
U5SLE0.book Page 22 Wednesday, September 11, 2002 11:46 AM

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
U5SLE0.book Page 22 Wednesday, September 11, 2002 11:46 AM

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)
U5SLE0.book Page 28 Wednesday, September 11, 2002 11:46 AM

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
U5SLE0.book Page 31 Wednesday, September 11, 2002 11:46 AM

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)
U5SLE0.book Page 33 Wednesday, September 11, 2002 11:46 AM