2002 YAMAHA YZF-R1 check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
6
EAU01579
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU04532
Front wheel To remove the front wheel
EW000122
WARNING
_

It is advisable to have a Yamaha
dealer service the wheel.


Securely support the motor-
cycle so that there is no danger
of it falling over.
_1. Loosen the axle bolt, the wheel
axle pinch bolts, and then the
brake caliper bolts.1. Front wheel axle pinch bolt (× 4)
U5PWE0.book Page 39 Friday, December 7, 2001 5:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-45
6
EAU02990
Troubleshooting charts Starting problems or poor engine performance
EW000125
WARNING
_ Keep away open flames and do not smoke while checking or working on the fuel system. _CT-1AE
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U5PWE0.book Page 45 Friday, December 7, 2001 5:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-46
6 Engine overheating
EW000070
WARNING
_

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.


After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
_CT-2AENOTE:_ If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible. _
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
U5PWE0.book Page 46 Friday, December 7, 2001 5:14 PM

MOTORCYCLE CARE AND STORAGE
7-5
7a. Remove the spark plug caps and
spark plugs.
b. Pour a teaspoonful of engine oil
into each spark plug bore.
c. Install the spark plug caps onto the
spark plugs, and then place the
spark plugs on the cylinder head
so that the electrodes are ground-
ed. (This will limit sparking during
the next step.)
d. Turn the engine over several times
with the starter. (This will coat the
cylinder walls with oil.)
e. Remove the spark plug caps from
the spark plugs, and then install
the spark plugs and the spark plug
caps.
EWA00003
WARNING
_ To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over. _
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place (less
than 0 °C or more than 30 °C). For
more information on storing the
battery, see page 6-34.
NOTE:_ Make any necessary repairs before
storing the motorcycle. _
U5PWE0.book Page 5 Friday, December 7, 2001 5:14 PM

INDEXAAir filter element, replacing ..................... 6-16
Anti-theft alarm ...................................... 3-11BBattery ................................................... 6-33
Brake and clutch levers,
checking and lubricating ...................... 6-30
Brake fluid, changing ............................. 6-27
Brake fluid level, checking...................... 6-26
Brake lever............................................. 3-13
Brake light switch (rear), adjusting ......... 6-24
Brake pads, checking............................. 6-25
Brake pedal............................................ 3-14
Brake pedal, lubricating.......................... 6-31
Brake pedal position, adjusting .............. 6-24CCables, checking and lubricating............ 6-29
Care.........................................................7-1
Catalytic converter ................................. 3-16
Clutch lever ............................................ 3-13
Clutch lever free play, adjusting ............. 6-23
Conversion table ......................................8-5
Coolant .................................................. 6-12
Changing .......................................... 6-13
Checking .......................................... 6-12
Coolant temperature warning light............3-4
Cowlings and panels,
removing and installing ..........................6-5
DDimmer switch ....................................... 3-11
Drive chain, lubricating .......................... 6-29
Drive chain slack ................................... 6-27
Adjusting .......................................... 6-28
Checking .......................................... 6-27EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge ............... 6-9
Engine speed indicator light..................... 3-4
Engine stop switch................................. 3-12
Engine trouble warning light .................... 3-3
EXUP system ........................................ 3-24FFront fork, adjusting ............................... 3-19
Front fork, checking ............................... 6-31
Fuel ....................................................... 3-15
Fuel consumption, tips for reducing ......... 5-3
Fuel level warning light ............................ 3-2
Fuel tank breather hose ......................... 3-16
Fuel tank cap ......................................... 3-14
Fuses, replacing .................................... 6-35HHandlebar switches ............................... 3-11
Headlight bulb, replacing ....................... 6-36
Helmet holders ...................................... 3-18
High beam indicator light ......................... 3-3
Horn switch ........................................... 3-12
IIdentification numbers ..............................9-1
Idling speed, adjusting ...........................6-18
Ignition circuit cut-off system ..................3-25
Indicator and warning lights......................3-2KKey identification number .........................9-1LLicense plate light bulb, replacing...........6-38
Light switch .............................................. 3-12
Luggage strap holders ...........................3-23MMain switch/steering lock .........................3-1
Model label ..............................................9-2
Multi-function display................................3-6NNeutral indicator light ...............................3-3OOil level warning light ...............................3-3PParking.....................................................5-4
Part locations ...........................................2-1
Pass switch ............................................3-11
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list ............................4-1
U5PWE0.book Page 1 Friday, December 7, 2001 5:14 PM

INDEX
SSafety information.................................... 1-1
Seats ..................................................... 3-17
Passenger seat ................................ 3-17
Rider seat ........................................ 3-17
Shifting .................................................... 5-2
Shift pedal ............................................. 3-13
Shift points (for Switzerland only)............. 5-3
Shock absorber assembly, adjusting ..... 3-21
Sidestand .............................................. 3-24
Sidestand, checking and lubricating....... 6-31
Spark plugs, checking ............................. 6-8
Specifications .......................................... 8-1
Starting a cold engine .............................. 5-1
Start switch ............................................ 3-12
Steering, checking ................................. 6-32
Storage.................................................... 7-4
Storage compartment ............................ 3-19
Supporting the motorcycle ..................... 6-39TTachometer ........................................... 3-11
Tail/brake light ....................................... 6-37
Throttle cable free play, adjusting .......... 6-19
Throttle grip and cable,
checking and lubricating ...................... 6-30
Tires ...................................................... 6-19
Tool kit..................................................... 6-1
Troubleshooting..................................... 6-44
Troubleshooting charts .......................... 6-45
Turn signal indicator lights ....................... 3-2
Turn signal light bulb, replacing ............. 6-37
Turn signal switch .................................. 3-12
VValve clearance, adjusting .................... 6-19
Vehicle identification number................... 9-1WWheel bearings, checking ..................... 6-33
Wheel (front) ......................................... 6-39
Installing .......................................... 6-41
Removing ........................................ 6-39
Wheel (rear) .......................................... 6-42
Installing .......................................... 6-43
Removing ........................................ 6-42
Wheels .................................................. 6-22
U5PWE0.book Page 2 Friday, December 7, 2001 5:14 PM