engine YAMAHA YZF-R6 2002 Owners Manual

2-1
2
EAU00026
2-DESCRIPTION Left view1. Front fork compression damping force
adjusting screw (page 3-18)
2. Front fork rebound damping force
adjusting screw (page 3-18)
3. Front fork spring preload adjusting bolt (page 3-17)
4. Air filter element (page 6-17)
5. Shock absorber assembly compression
damping force adjusting screw (page 3-20)6. Shock absorber assembly spring preload
adjusting ring (page 3-19)
7. Shock absorber assembly rebound
damping force adjusting knob (page 3-20)
8. Shift pedal (page 3-9)
9. Coolant reservoir (page 6-13)
10. Engine oil filter cartridge (page 6-9)
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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
3-3
3
EAU04222
Oil level/coolant temperature warn-
ing light “”
This warning light has the following
three functions.

When the engine oil level is low,
the warning light comes on and
symbol “” flashes. If this oc-
curs, stop the engine immediately
and add engine oil to the specified
level.


When the coolant temperature is
too high, the warning light comes
on and symbol “” flashes. Stop
the motorcycle and allow it to idle
until the coolant temperature goes
down. If the temperature does not
go down, stop the engine. (See
the “Engine overheating” section
on page 6-45 for further instruc-
tions.)


When the engine oil level is low
and the coolant temperature is too
high, the warning light flashes and
symbols “” and “” come on.
To check that the warning light is work-
ing properly:


Put the transmission in neutral or
apply the clutch lever.


Turn the engine stop switch to
“” and the key to “ON”.


The warning light will come on,
and symbols “” and “” will
appear in the display.
If the warning light does not come on,
have a Yamaha dealer inspect the
electrical circuit.
EC000118
CAUTION:_

Do not operate the motorcycle
until you know that the engine
oil level is sufficient.


Do not operate the engine if it is
overheated.
_NOTE:_ Even if the oil is filled to the specified
level, the warning light may flicker
when riding on a slope or during sud-
den acceleration or deceleration, but
this is normal. _
1. Oil level symbol “”
2. Oil level/coolant temperature
warning light “”
3. Coolant temperature symbol “”U5MTE1.book Page 3 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
CB-19E
Coolant
temperatureDisplay Conditions What to do0–40 °C Symbol and message
“LO” are displayed.OK. Go ahead with riding.
41–117 °C Symbol and temperature
are displayed.OK. Go ahead with riding.
118–140 °C Symbol and temperature
flash.
Warning light comes on.Stop the motorcycle and allow it to
idle until the coolant temperature
goes down.
If the temperature does not go
down, stop the engine. (See the
“Engine overheating” section on
page 6-45 for further instructions.)
Above 140 °CSymbol and message
“HI” flash.
Warning light comes on.Stop the engine and allow it to cool.
(See the “Engine overheating” sec-
tion on page 6-45 for further in-
structions.)
˚C˚C˚C˚C
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INSTRUMENT AND CONTROL FUNCTIONS
3-6
3 To set the clock:
1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2 When the hour digits start flashing,
push the “RESET” button to set
the hours.
3. Push the “SELECT” button, and
the minute digits will start flashing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button and
then release it to start the clock.
EAU00101
Tachometer The electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
EC000003
CAUTION:@ Do not operate the engine in the ta-
chometer red zone.
Red zone: 15,500 r/min and above @1. Tachometer
2. Tachometer red zone
U5MTE1.book Page 6 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
EAU03729
Self-diagnosis device This model is equipped with a self-di-
agnosis device for the following electri-
cal circuits:

throttle position sensor


speed sensor
If any of those circuits are defective,
the tachometer will repeatedly display
the following error code:
CB-11E
Use the table below to identify the
faulty electrical circuit.CB-28EIf the tachometer displays such an er-
ror code, note the circuit-specific num-
ber of r/min, and then have a Yamaha
dealer check the motorcycle.
EC000004
CAUTION:_ When the tachometer displays an
error code, the motorcycle should
be checked as soon as possible in
order to avoid engine damage. _
EAU00109
Anti-theft alarm (optional) This motorcycle can be equipped with
an optional anti-theft alarm by a
Yamaha dealer. Contact a Yamaha
dealer for more information.
0 r/min for
3 seconds
Circuit-specific
number of r/min
for 2.5 seconds
(See the table
below.)
Current
engine
speed for
3 seconds
Specific r/min
Faulty electrical circuit
3,000 r/min
Throttle position sensor
4,000 r/min
Speed sensor
U5MTE1.book Page 7 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU00118
Handlebar switches
EAU00120
Pass switch “PASS”
Press this switch to flash the headlight.
EAU03888
Dimmer switch “/”
Set this switch to “” for the high
beam and to “” for the low beam.
EAU03889
Turn signal switch “/”
To signal a right-hand turn, push this
switch to “”. To signal a left-hand
turn, push this switch to “”. When
released, the switch returns to the cen-
ter position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU00129
Horn switch “”
Press this switch to sound the horn.
EAU03890
Engine stop switch “/”
Set this switch to “” before starting
the engine. Set this switch to “” to
stop the engine in case of an emergen-
cy, such as when the motorcycle over-
turns or when the throttle cable is
stuck.
EAU03955
Light switch “//”
Set this switch to “” to turn on the
auxiliary lights, meter lighting and tail-
lights. Set the switch to “” to turn on
the headlight also. Set this switch to
“” to turn off all the lights.
1. Pass switch “PASS”
2. Dimmer switch “/”
3. Turn signal switch “/”
4. Horn switch “”
1. Engine stop switch “/”
2. Light switch “//”
3. Start switch “”
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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
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INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU02935
Fuel tank cap To open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key into the lock, and then turn
it 1/4 turn clockwise. The lock will be re-
leased and the fuel tank cap can be
opened.
To close the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock. 2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.
NOTE:@ The fuel tank cap cannot be closed un-
less the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly closed and locked. @
EWA00025
WARNING
@ Make sure that the fuel tank cap is
properly closed before riding. @
EAU03753
Fuel Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
EW000130
WARNING
_

Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.


Avoid spilling fuel on the hot
engine.
_
1. Fuel tank cap lock cover
2. Unlock.
1. Fuel tank filler tube
2. Fuel level
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INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
EAU00185
CAUTION:@ Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-
es or plastic parts. @
EAU04255
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 regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. 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:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
17 L
Reserve amount:
3.5 L
1. Fuel tank breather hoseLeft side
U5MTE1.book Page 12 Monday, August 6, 2001 6:10 PM