2003 YAMAHA YZF-R6 ignition
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3
INSTRUMENT AND CONTROL FUNCTIONS
Immobilizer system .............................................. 3-1
Main switch/steering lock ..................................... 3-2
Indicator and warning lights ................................ 3-4
Multi-function display ........................................... 3-8
Tachometer ........................................................ 3-13
Anti-theft alarm (optional) .................................. 3-13
Handlebar switches ........................................... 3-13
Clutch lever ........................................................ 3-15
Shift pedal .......................................................... 3-15
Brake lever ......................................................... 3-16
Brake pedal ........................................................ 3-16
Fuel tank cap ..................................................... 3-17Fuel ................................................................... 3-17
Fuel tank breather hose .................................... 3-18
Catalytic converter ............................................ 3-19
Seats ................................................................. 3-19
Helmet holders .................................................. 3-21
Storage compartment ....................................... 3-21
Adjusting the front fork ...................................... 3-23
Adjusting the shock absorber assembly ............ 3-25
Luggage strap holders ...................................... 3-27
Sidestand .......................................................... 3-27
Ignition circuit cut-off system ............................. 3-28
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Page 19 of 130
INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
Do not place any key close to
magnets (this includes, but not
limited to, products such as
speakers, etc.).
Do not place heavy items on
any key.
Do not grind any key or alter its
shape.
Do not disassemble the plastic
part of any key.
Do not put two keys of any im-
mobilizer system on the same
key ring.
Keep the standard keys as well
as keys of other immobilizer
systems away from this vehi-
cle’s code re-registering key.
Keep other immobilizer system
keys away from the main switch
as they may cause signal inter-
ference.
_
EAU04984
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering.NOTE:_ Be sure to use the standard key (black
bow) for regular use of the vehicle. To
minimize the risk of losing the code re-
registering key (red bow), keep it in a
safe place and only use it for code re-
registering. _
EAU04562
ON
All electrical circuits are supplied with
power, and the meter lighting, taillight,
license plate light and auxiliary lights
come on, and the engine can be start-
ed. The key cannot be removed.NOTE:_ The headlights come on automatically
when the engine is started and stay on
until the key is turned to “OFF”, even if
the engine stalls. _
EAU00038
OFF
All electrical systems are off. The key
can be removed.
U5SLE0.book Page 2 Wednesday, September 11, 2002 11:46 AM
Page 32 of 130
INSTRUMENT AND CONTROL FUNCTIONS
3-15
3
EAU00143
Start switch “”
Push this switch to crank the engine
with the starter.
EC000005
CAUTION:@ See page 5-1 for starting instruc-
tions prior to starting the engine. @
EAU00152
Clutch lever The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the ignition
circuit cut-off system. (See page 3-28
for an explanation of the ignition circuit
cut-off system.)
EAU00157
Shift pedal The shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 6-speed con-
stant-mesh transmission equipped on
this motorcycle.
1. Clutch lever
1. Shift pedal
U5SLE0.book Page 15 Wednesday, September 11, 2002 11:46 AM
Page 44 of 130
INSTRUMENT AND CONTROL FUNCTIONS
3-27
3
EAU00315
WARNING
@ This shock absorber contains high-
ly pressurized nitrogen gas. For
proper handling, read and under-
stand the following information be-
fore handling the shock absorber.
The manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.
Do not tamper with or attempt to
open the gas cylinder.
Do not subject the shock ab-
sorber to an open flame or other
high heat sources, otherwise it
may explode due to excessive
gas pressure.
Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-
formance.
Always have a Yamaha dealer
service the shock absorber.
@
EAU03170
Luggage strap holders There are four luggage strap holders
on the bottom of the passenger seat.
To use the strap holders, remove the
passenger seat, unhook the straps,
and then install the seat with the straps
hanging out from under the passenger
seat. (See page 3-20 for passenger
seat removal and installation proce-
dures.)
EAU00330
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
motorcycle upright.NOTE:@ The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.) @
1. Luggage strap holder (× 4)
2. Hook (× 4)
U5SLE0.book Page 27 Wednesday, September 11, 2002 11:46 AM
Page 45 of 130
INSTRUMENT AND CONTROL FUNCTIONS
3-28
3
EW000044
WARNING
@ The motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up), oth-
erwise the sidestand could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha’s ignition circuit
cut-off system has been designed to
assist the operator in fulfilling the
responsibility of raising the side-
stand before starting off. Therefore,
check this system regularly as de-
scribed below and have a Yamaha
dealer repair it if it does not function
properly. @
EAU03720
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.
It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.
It prevents starting when the trans-
mission is in gear and the clutch
lever is pulled, but the sidestand is
still down.
It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EW000045
WARNING
_ If a malfunction is noted, have a
Yamaha dealer check the system
before riding. _
U5SLE0.book Page 28 Wednesday, September 11, 2002 11:46 AM
Page 49 of 130
PRE-OPERATION CHECKS
4-2
4
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-23, 6-34
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-34
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-32–6-34
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-24–6-27
Brake and shift pedalsMake sure that operation is smooth.
Lubricate pedal pivoting points if necessary.6-35–6-36
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-35
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.6-36
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Instruments, lights, signals
and switchesCheck operation.
Correct if necessary.—
Sidestand switchCheck operation of ignition circuit cut-off system.
If system is defective, have Yamaha dealer check vehicle.3-29
Air intake ductCheck that the screen is not clogged.
Clean if necessary.6-22 ITEM CHECKS PAGE
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Page 52 of 130
5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate
ventilation.
Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
@
EAU04953
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
_
Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-29.
Never ride with the sidestand
down.
_1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
ECA00147
CAUTION:_ The following warning lights and in-
dicator light should come on for a
few seconds, then go off.
Oil level warning light
Fuel level warning light
Coolant temperature warning
light
Shift timing indicator light
Engine trouble warning light
Immobilizer system indicator
light
If a warning or indicator light does
not go off, see pages 3-4–3-7 for the
corresponding warning and indica-
tor light circuit check.
_2. Shift the transmission into the neu-
tral position.NOTE:_ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. _
U5SLE0.book Page 1 Wednesday, September 11, 2002 11:46 AM
Page 66 of 130
PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
NOTE:
@
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible. @
ECA00021
CAUTION:@ Do not use any tools to remove or
install the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twist
it back and forth while pushing it in. @
EAU04941
Engine oil and oil filter
cartridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. _2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles.
a. Spark plug gapSpark plug gap:
0.6–0.7 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
U5SLE0.book Page 9 Wednesday, September 11, 2002 11:46 AM