ignition YAMAHA YZF-R6 2002 Owners Manual

3
INSTRUMENT AND CONTROL FUNCTIONS
Main switch/steering lock ..................................... 3-1
Indicator and warning lights ................................ 3-2
Speedometer unit ................................................ 3-5
Tachometer .......................................................... 3-6
Self-diagnosis device ........................................... 3-7
Anti-theft alarm (optional) .................................... 3-7
Handlebar switches ............................................. 3-8
Clutch lever .......................................................... 3-9
Shift pedal ............................................................ 3-9
Brake lever ......................................................... 3-10
Brake pedal ........................................................ 3-10
Fuel tank cap ..................................................... 3-11
Fuel .................................................................... 3-11Fuel tank breather hose .................................... 3-12
Starter (choke) lever........................................... 3-13
Seats ................................................................. 3-13
Helmet holders .................................................. 3-15
Storage compartment ....................................... 3-15
Adjusting the front fork ...................................... 3-17
Adjusting the shock absorber assembly ............ 3-19
Matching the front and rear suspension
settings ............................................................ 3-22
Luggage strap holders ...................................... 3-23
Sidestand .......................................................... 3-23
Ignition circuit cut-off system ............................. 3-24
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3-1
3
EAU00027
3-INSTRUMENT AND CONTROL FUNCTIONS
EAU00029
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU00036
ON
All electrical systems are supplied with
power, and the engine can be started.
The key cannot be removed.
EAU00038
OFF
All electrical systems are off. The key
can be removed.
EAU00040
LOCK
The steering is locked, and all electrical
systems are off. The key can be
removed.
To lock the steering1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.
To unlock the steeringPush the key in, and then turn it to
“OFF” while still pushing it.
EW000016
WARNING
@ Never turn the key to “OFF” or
“LOCK” while the motorcycle is
moving, otherwise the electrical
systems will be switched off, which
may result in loss of control or an
accident. Make sure that the motor-
cycle is stopped before turning the
key to “OFF” or “LOCK”. @1. Push.
2. Turn.
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-9
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 3-24
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. Engine stop switch “/”
2. Light switch “//”
3. Start switch “”
1. Clutch lever
1. Shift pedal
U5MTE1.book Page 9 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-23
3
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 3-14 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.) @
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. @
1. Luggage strap holder (× 4)
2. Hook (× 4)U5MTE1.book Page 23 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-24
3
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. _
U5MTE1.book Page 24 Monday, August 6, 2001 6:10 PM

PRE-OPERATION CHECKS
4-2
4
Control cables•Make sure that operation is smooth.
•Lubricate if necessary.6-31
Drive chain•Check chain slack.
•Adjust if necessary.
•Check chain condition.
•Lubricate if necessary.6-29–6-31
Wheels and tires•Check for damage.
•Check tire condition and tread depth.
•Check air pressure.
•Correct if necessary.6-21–6-24
Brake and shift pedals•Make sure that operation is smooth.
•Lubricate pedal pivoting points if necessary.6-32
Brake and clutch levers•Make sure that operation is smooth.
•Lubricate lever pivoting points if necessary.6-32
Sidestand•Make sure that operation is smooth.
•Lubricate pivot if necessary.6-33
Chassis fasteners•Make sure that all nuts, bolts and screws are properly tightened.
•Tighten if necessary.—
Instruments, lights, signals
and switches•Check operation.
•Correct if necessary.—
Sidestand switch•Check operation of ignition circuit cut-off system.
•If system is defective, have Yamaha dealer check vehicle.3-23
Air intake duct•Check that the screen is not clogged.
•Clean if necessary.6-19 ITEM CHECKS PAGE
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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.
@
EAU01382*
Starting a cold 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 3-25.


Never ride with the sidestand
down.
@1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
ECA00005
CAUTION:@ The oil level/coolant temperature
warning light and fuel level warning
light should come on for a few sec-
onds, then go off. If a warning light
does not go off, see page 3-4 for the
corresponding warning 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
circuit. @3. Turn the starter (choke) on and
completely close the throttle. (See
page 3-13 for starter (choke)
operation.)
4. Start the engine by pushing the
start switch.
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM

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. @
EAU04224
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. _
a. Spark plug gapSpark plug gap:
0.6–0.7 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
U5MTE1.book Page 9 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU04225
Replacing the fuses The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located under the rider seat.
(See page 3-13 for rider seat 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.
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.
1. Headlight fuse
2. Radiator fan fuse
3. Ignition fuse
4. Signaling system fuse
5. Backup fuse (odometer)
6. Spare fuse (× 3)
1. Main fuse
2. Spare main fuse
Specified fuses:
Main fuse: 30 A
Headlight fuse: 20 A
Signaling system fuse: 15 A
Radiator fan fuse: 7.5 A
Ignition fuse: 15 A
Backup fuse (odometer): 7.5 A
U5MTE1.book Page 37 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
6
EAU03538
To install the rear wheel
1. Install the wheel by inserting the
wheel axle from the left hand side.
2. Install the drive chain onto the rear
sprocket, and then adjust the drive
chain slack. (See page 6-30 for
drive chain slack adjustment pro-
cedures.)
3. Install the axle nut, and then lower
the rear wheel so that it is on the
ground.
4. Install the brake caliper by install-
ing the bolts.NOTE:_ Make sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brake
disc. _5. Tighten the axle nut and the brake
caliper bolts to the specified
torques.
EAU03087
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills. Tightening torques:
Axle nut:
150 Nm (15.0 m·kgf)
Brake caliper bolt:
40 Nm (4.0 m·kgf)
U5MTE1.book Page 43 Monday, August 6, 2001 6:10 PM