2004 YAMAHA YZF-R6 check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
63. Remove the defective bulb by pull-
ing it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with the
bulb) by pushing it in.
6. Install the auxiliary light bulb cover
by installing the quick fastener.
NOTE:To install the quick fastener, push the
center pin out so that it will protrude
from the fastener head, insert the fas-
tener into the auxiliary light bulb cover,
and then push the protruding pin in untilit is flush with the fastener head.
EAU24350
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 maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under 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
1. Auxiliary light bulb
2. Auxiliary light bulb socket
1. Quick fastener
2. Pin
12
5SLE1.book Page 38 Friday, August 1, 2003 4:09 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
6
EAU25911
Troubleshooting charts Starting problems or poor engine performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
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.
5SLE1.book Page 43 Friday, August 1, 2003 4:09 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-44
6Engine overheating
WARNING
EWA10400


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 hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas 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.
5SLE1.book Page 44 Friday, August 1, 2003 4:09 PM

INDEXAAir filter element, checking .................... 6-16
Air intake duct ....................................... 6-18
Anti-theft alarm (optional)...................... 3-12
Auxiliary light bulb, replacing ................ 6-37BBattery................................................... 6-32
Brake and clutch levers, checking
and lubricating .................................... 6-30
Brake and shift pedals, checking
and lubricating .................................... 6-29
Brake fluid, changing ............................ 6-26
Brake fluid level, checking .................... 6-25
Brake lever ............................................ 3-14
Brake pedal ........................................... 3-15
Brake pedal position, adjusting ............. 6-23CCables, checking and lubricating .......... 6-28
Care ........................................................ 7-1
Catalytic converter ................................ 3-17
Clutch lever ........................................... 3-14
Clutch lever free play, adjusting ............ 6-22
Coolant.................................................. 6-12
Coolant temperature warning light .......... 3-5
Cowlings and panels, removing and
installing................................................ 6-6DDimmer switch ...................................... 3-13
Drive chain, lubricating.......................... 6-28
Drive chain slack ................................... 6-26EEngine break-in ....................................... 5-3
Engine idling speed............................... 6-18
Engine oil and oil filter cartridge .............. 6-9Engine stop switch................................ 3-13
Engine trouble warning light ................... 3-7
FFront and rear brake pads, checking .... 6-24
Front fork, adjusting .............................. 3-20
Front fork, checking .............................. 6-31
Fuel....................................................... 3-16
Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose........................ 3-17
Fuel tank cap ........................................ 3-15
Fuses, replacing ................................... 6-33HHandlebar switches .............................. 3-12
Hazard switch ....................................... 3-13
Headlight bulb, replacing ...................... 6-35
Helmet holders ..................................... 3-18
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-13IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-24
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-7
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLicense plate light bulb, replacing ........ 6-37
Luggage strap holders .......................... 3-23MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2
Multi-function display .............................. 3-8
NNeutral indicator light .............................. 3-4OOil level warning light .............................. 3-4PParking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ........................................... 3-13
Periodic maintenance and lubrication
chart ...................................................... 6-2
Pre-operation check list........................... 4-2RRear brake light switch, adjusting ......... 6-24SSafety information ................................... 1-1
Seats ..................................................... 3-17
Shifting .................................................... 5-2
Shift pedal ............................................. 3-14
Shift timing indicator light ........................ 3-7
Shock absorber assembly, adjusting .... 3-22
Sidestand .............................................. 3-24
Sidestand, checking and lubricating...... 6-30
Spark plugs, checking ............................. 6-8
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-13
Steering, checking................................. 6-31
Storage.................................................... 7-3
Storage compartment............................ 3-19
Supporting the motorcycle .................... 6-38TTachometer ............................................. 3-8
Tail/brake light ....................................... 6-36
Throttle cable free play, adjusting ......... 6-19
5SLE1.book Page 1 Friday, August 1, 2003 4:09 PM