2001 YAMAHA YZF-R6 check engine light

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU03723*
Oil level/coolant temperature warn-
ing light “ ”
This warning light has the following
three functions.l
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.
l
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 6-46 for further instruc-
tions.)
l
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:
l
Put the transmission in neutral or
apply the clutch lever.
l
Turn the engine stop switch to
“ ” and the key to “ON”.
l
The warning light will come on and
symbols “ ” and “ ” will ap-
pear in the display.
If the warning light does not come on,
have a Yamaha dealer inspect the
electrical circuit.
EC000118
CAUTION:_ l
Do not operate the motorcycle
until you know that the engine
oil level is sufficient.
l
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 “ ”E_5mt_Functions.fm Page 3 Thursday, September 21, 2000 10:27 AM

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:l
throttle position sensor
l
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. _
EAU00118
Handlebar switches
EAU00120
Pass switch “PASS”
Press this switch to flash the headlight.
EAU00121
Dimmer switch
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
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
1. Pass switch “PASS”
2. Dimmer switch
3. Turn signal switch
4. Horn switch “ ”
E_5mt.book Page 7 Monday, September 18, 2000 9:08 AM

PRE-OPERATION CHECKS
4-2
4
Throttle grip• Make sure that operation is smooth.
• Lubricate throttle grip, housing and cables if necessary.
• Check free play.
• If necessary, have Yamaha dealer make adjustment.6-21, 6-33
Control cables• Make sure that operation is smooth.
• Lubricate if necessary.6-33
Drive chain• Check chain slack.
• Adjust if necessary.
• Check chain condition.
• Lubricate if necessary.6-31–6-32
Wheels and tires• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.6-22–6-25
Brake and shift pedals• Make sure that operation is smooth.
• Lubricate pedal pivoting points if necessary.6-34
Brake and clutch levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-34
Sidestand• Make sure that operation is smooth.
• Lubricate pivot if necessary.6-34
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.—
Engine stop switch• Check operation.3-8
Sidestand switch• Check operation of ignition circuit cut-off system.
• If system is defective, have Yamaha dealer check vehicle.3-22 ITEM CHECKS PAGE
E_5mt.book Page 2 Monday, September 18, 2000 9:08 AM

5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@ l
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.
l
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.
l
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:l
The transmission is in the neutral
position.
l
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
@ l
Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-24.
l
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.
E_5mt.book Page 1 Monday, September 18, 2000 9:08 AM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-3
Removing and installing cowlings and panels ..... 6-6
Cowlings A and B ................................................. 6-6
Checking the spark plugs .................................... 6-9
Engine oil and oil filter cartridge ........................ 6-10
Coolant .............................................................. 6-13
Checking the air filter element ........................... 6-17
Air intake duct .................................................... 6-20
Adjusting the carburetors ................................... 6-20
Adjusting the engine idling speed ...................... 6-21
Adjusting the throttle cable free play .................. 6-21
Adjusting the valve clearance ............................ 6-22
Tires ................................................................... 6-22
Wheels ............................................................... 6-25
Adjusting the clutch lever free play .................... 6-25
Adjusting the brake pedal position ..................... 6-27
Adjusting the rear brake light switch .................. 6-27
Checking the front and rear brake pads ............. 6-28
Checking the brake fluid level ............................ 6-29
Changing the brake fluid .................................... 6-30
Drive chain slack ................................................ 6-31Lubricating the drive chain ................................ 6-32
Checking and lubricating the cables ................. 6-33
Checking and lubricating the throttle
grip and cable ................................................. 6-33
Lubricating the brake pedal ............................... 6-34
Checking and lubricating the brake and
clutch levers .................................................... 6-34
Checking and lubricating the sidestand ............ 6-34
Lubricating the rear suspension ........................ 6-35
Checking the front fork ...................................... 6-35
Checking the steering ....................................... 6-36
Checking the wheel bearings ............................ 6-36
Battery ............................................................... 6-37
Replacing the fuses .......................................... 6-38
Replacing the headlight bulb ............................. 6-39
Tail/brake light ................................................... 6-40
Replacing a turn signal light bulb ...................... 6-40
Supporting the motorcycle ................................ 6-41
Front wheel ....................................................... 6-41
Rear wheel ........................................................ 6-43
Troubleshooting ................................................. 6-44
Troubleshooting charts ...................................... 6-45
E_5mt.book Page 1 Monday, September 18, 2000 9:08 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-5
6
EAU03541
NOTE:@l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
@22
*Carburetors• Check starter (choke) operation.
• Adjust engine idling speed and synchronization.ÖÖÖÖÖ Ö
23 Engine oil• Change.ÖÖÖÖÖ Ö
24 Engine oil filter cartridge•Replace.ÖÖÖ
25*Cooling system• Check coolant level and vehicle for coolant leakage.ÖÖÖÖ Ö
• Change. Every 3 years
26*Front and rear brake
switches• Check operation.ÖÖÖÖÖ Ö
27 Moving parts and cables• Lubricate.ÖÖÖÖ Ö
28*Lights, signals and
switches• Check operation.
• Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
E_5mt_Periodic.fm Page 5 Tuesday, December 12, 2000 5:49 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU01639
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal col-
or when the motorcycle is ridden nor-
mally), and all spark plugs installed in
the engine should have the same color.
If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.
Before 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. @
a. Spark plug gap
Specified spark plug:
CR10EK (NGK)
Spark plug gap:
0.6–0.7 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kg)
E_5mt.book Page 9 Monday, September 18, 2000 9:08 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
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. @
EAU01610
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, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.1. Engine oil dipstickRight side
E_5mt.book Page 10 Monday, September 18, 2000 9:08 AM