check engine YAMAHA YZF-R1 2001 Owners Manual

DESCRIPTION
2-2
2
Right view11. Owner’s tool kit (page 6-1)
12. Fuses (page 6-34)
13. Rear brake fluid reservoir (page 6-26)
14. Battery (page 6-33)
15. Shock absorber spring preload
adjusting ring (page 3-18)16. Radiator and coolant reservoir (page 6-12)
17. Front brake fluid reservoir (page 6-25)
18. Engine oil filter cartridge (page 6-9)
19. Engine oil level check window (page 6-9)
20. Brake pedal (page 3-11)
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INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU03285
Oil level warning light “ ”
This warning light comes on when the
engine oil level is low.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Turn the key to “ON”.
2. If the warning light does not come
on, have a Yamaha dealer check
the electrical circuit.
NOTE:@ Even if the oil level is sufficient, the warn-
ing light may flicker when riding on a
slope or during sudden acceleration or
deceleration, but this is not a malfunction. @
EAU03205
Coolant temperature warning light
“”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and allow
the engine to cool.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Turn the key to “ON”.
2. If the warning light does not come
on, have a Yamaha dealer check
the electrical circuit.
1. Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Fuel level warning light “ ”
5. Oil level warning light “ ”
1. Coolant temperature gauge
2. Coolant temperature warning light “ ”
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INSTRUMENT AND CONTROL FUNCTIONS
3-8
3 Use the chart below to identify the
faulty electrical circuit.
CB-26EIf 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. @
This model is also equipped with a self-
diagnosis device for the fuel level warn-
ing light circuit. If the fuel level warning
light circuit is defective, the following
cycle will be repeated until the malfunc-
tion is corrected: The warning light will
flash eight times, then go off for three
seconds. If this occurs, have a Yamaha
dealer check the motorcycle.
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.
Specific r/min
Faulty electrical circuit
3,000 r/min
Throttle position sensor
4,000 r/min
Speed sensor
7,000 r/min
EXUP system
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INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
EAU02955
Fuel tank breather hoseBefore operating the motorcycle:l
Check the fuel tank breather hose
connection.
l
Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.
l
Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.
EAU02976
Starter (choke) leverStarting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction
a to turn on
the starter (choke).
Move the lever in direction
b to turn off
the starter (choke).
1. Fuel tank breather hose
1. Starter (choke) lever
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INSTRUMENT AND CONTROL FUNCTIONS
3-22
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
procedures.)
EAU01571
EXUP systemThis motorcycle is equipped with
Yamaha’s EXUP (EXhaust Ultimate
Power valve) system. This system
boosts engine power by means of a
valve that regulates the diameter of the
exhaust pipe. The EXUP system valve
is constantly adjusted in accordance
with the engine speed by a computer-
controlled servomotor.
EC000027
CAUTION:@ l
The EXUP system has been set
and extensively tested at the
Yamaha factory. Changing
these settings without sufficient
technical knowledge may result
in poor performance of or dam-
age to the engine.
l
If the EXUP system does not op-
erate, have a Yamaha dealer
check it.
@
1. Luggage strap holder (´ 4)
2. Hook (´ 4)
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INSTRUMENT AND CONTROL FUNCTIONS
3-23
3
EAU00330
SidestandThe 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. @
EAU00331
Ignition circuit cut-off systemThe ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.l
It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.
l
It prevents starting when the trans-
mission is in gear and the clutch
lever is pulled, but the sidestand is
still down.
l
It cuts the running engine when
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. @
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INSTRUMENT AND CONTROL FUNCTIONS
3-24
3
CD-21E
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “ ”.
3. Turn the key to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
NO
NOTE:This check is most reliable if performed with
a warmed-up engine.
YESYES NO
The system is OK.
The motorcycle can be ridden.
YES NO
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4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
ITEM CHECKS PAGE
Fuel• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.3-12
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.6-9
Coolant• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.6-12–6-13
Front brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-24–6-26
Rear brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-23–6-26
Clutch• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.6-22–6-23
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.6-18, 6-29
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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
understand.
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.
@
EAU03535*
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 “ ”.
EC000035
CAUTION:@ If the fuel level warning light comes
on, check the fuel level, and, if nec-
essary, refuel as soon as possible. @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.
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OPERATION AND IMPORTANT RIDING POINTS
5-2
5
NOTE:@ If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the en-
gine more than 10 seconds on any one
attempt. @
EC000038
CAUTION:@ l
The oil level warning light and
fuel level warning light should
come on when the start switch
is pushed, and they should go
off when the start switch is
released.
l
If the oil level warning light flick-
ers or remains on after starting,
immediately stop the engine,
and then check the engine oil
level and the vehicle for oil leak-
age. If necessary, add engine
oil, and then check the warning
light again. If the warning light
does not come on when push-
ing the start switch, or if it doesnot go off after starting with suf-
ficient engine oil, have a
Yamaha dealer check the elec-
trical circuit.
l
If the fuel level warning light re-
mains on after starting, stop the
engine, and then check the fuel
level. If necessary, refuel as
soon as possible, and then
check the warning light again. If
the warning light does not come
on when pushing the start
switch, or if it does not go off af-
ter starting with sufficient fuel,
have a Yamaha dealer check the
electrical circuit.
@5. After starting the engine, move the
starter (choke) lever back halfway.
ECA00045
CAUTION:@ For maximum engine life, never ac-
celerate hard when the engine is
cold! @
6. When the engine is warm, turn the
starter (choke) off.NOTE:@ l
The engine is warm when it re-
sponds normally to the throttle
with the starter (choke) turned off.
l
When the engine is idling with the
starter (choke) turned on, the radi-
ator fan will automatically be
switched on and off regardless of
the coolant temperature. As a re-
sult, the engine idling speed will
vary, but this does not indicate a
malfunction.
@
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