PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU01579
Supporting the motorcycleSince the Yamaha YZF-R6 has no cen-
terstand, 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.
Front wheel service
To stabilize the rear of the motorcycle,
either use a motorcycle stand or place
a motorcycle jack under the frame in
front of the rear wheel to prevent it from
moving from side to side. Then use a
motorcycle stand to elevate the front
wheel off of the ground.Rear wheel service
Use a motorcycle stand or motorcycle
jack to elevate the motorcycle so the
rear wheel is off the ground. Alterna-
tively, two jacks can be placed under
the frame or swingarm.
EAU01617
Front wheel removal
EW000122
WARNING
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so there is no danger of it
falling over.
@1. Loosen the pinch bolt and caliper
bolts.
2. Loosen the wheel axle by using a
19-mm hexagon wrench.1. Wheel axle
2. Pinch bolt
E_5eb_Periodic.fm Page 37 Thursday, November 18, 1999 4:06 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
EAU02990
Troubleshooting chart
EW000125
WARNING
@ Never check the fuel system while smoking or in the vicinity of an open flame. @
Check if there is fuel
in the fuel tank.1. Fuel
Enough fuel.
No fuel.
Go to compression check.
Supply fuel.
Engine doesn’t start, go to compression check.
Use the electric starter.2. Compression
There is compression.
No compression.
Go to ignition check.
Ask a Yamaha dealer to
inspect.
Remove spark plugs
and check electrodes.3. Ignition
Wet.
Dry.
Wipe clean with dry cloth and correct
spark gap or replace spark plugs.
Ask a Yamaha dealer to inspect.
Engine doesn’t start, ask a Yamaha
dealer to inspect.Engine doesn’t start, go to battery
check.Open throttle half-way and start
the engine.
Use the electric starter.4. Battery
Engine turns over
quickly.
Engine turns over
slowly.
Battery good.Check connections or
recharge.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-42
6
5. 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. Open the radiator cap as follows. Wait until the engine has
cooled. Remove the radiator cap stopper by removing the screw. Place a thick rag like a towel over the radiator cap
and slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape.
When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it. @NOTE:@ If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recom-
mended coolant as soon as possible. @
Wait until the
engine has cooled.
Check the coolant level in the
reservoir tank and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and repair the cooling system.
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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 place the spark
plugs on the cylinder head so that
the electrodes are grounded. (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, install the spark
plugs and then the spark plug
caps.
EWA00003
WARNING
@ When turning the engine over, be
sure to ground the spark plug elec-
trodes to prevent damage or injury
from sparking. @
6. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
7. Check and, if necessary, correct
the tire air pressure, then raise 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.
8. Cover up the muffler outlet with a
plastic bag to prevent moisture
from entering.9. Remove the battery and fully
charge it. Store it in a cool, dry
place and recharge it once a
month. Do not store the battery in
an excessively cold or warm place
(less than 0°C or more than 30°C).
For more information, see “Battery
storage” in the chapter “PERIOD-
IC MAINTENANCE AND MINOR
REPAIRS”.
NOTE:@ Make any necessary repairs before
storing the motorcycle. @
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10-INDEXAAir filter .................................................. 6-17
Air intake duct ........................................ 6-19
Antitheft alarm (optional) ........................ 3-12BBattery ................................................... 6-33
Brake and clutch lever lubrication........... 6-31
Brake fluid replacement ......................... 6-28
Brake light switch adjustment ................. 6-25
Brake pedal lubrication........................... 6-30CCable inspection and lubrication ............ 6-30
Carburetor adjustment ........................... 6-20
Care.........................................................7-1
Changing the coolant ............................. 6-14
Checking the front and rear brake
pads .................................................... 6-26
Clutch lever ............................................ 3-11
Clutch lever free play adjustment ........... 6-25
Controls/Instruments ................................2-3
Cooling system ...................................... 6-13
Cowling and panel removal and
installation .............................................6-6
Cowlings A and B ....................................6-6DDiagnosis device......................................3-9
Digital speedometer .................................3-7
Dimmer switch .........................................3-9
Drive chain lubrication ............................ 6-29
Drive chain slack adjustment.................. 6-29
Drive chain slack check.......................... 6-28
EEngine break-in ....................................... 5-5
Engine oil .............................................. 6-10
Engine stop switch................................. 3-10FFront brake lever ................................... 3-11
Front fork adjustment............................. 3-17
Front fork inspection .............................. 6-32
Front wheel installation .......................... 6-38
Front wheel removal .............................. 6-37
Fuel ....................................................... 3-13
Fuel indicator light ................................... 3-2
Fuel indicator light circuit check ............... 3-6
Fuel tank breather hose ......................... 3-14
Fuel tank cap ......................................... 3-13
Fuse replacement.................................. 6-34GGive safety the right of way ..................... 1-1HHandlebar switches ................................. 3-9
Dimmer switch ................................... 3-9
Engine stop switch ........................... 3-10
Horn switch ...................................... 3-10
Light switch ...................................... 3-10
Pass switch ........................................ 3-9
Start switch ...................................... 3-10
Turn signal switch ............................ 3-10
Headlight bulb replacement ................... 6-35
Helmet holder ........................................ 3-17
High beam indicator light ......................... 3-2
Horn switch ........................................... 3-10
IIdentification number records ...................9-1
Idle speed adjustment ............................6-20
Indicator lights ..........................................3-2
Fuel indicator light...............................3-2
High beam indicator light ....................3-2
Neutral indicator light ..........................3-2
Oil level/coolant temperature
indicator light....................................3-3
Turn indicator light ..............................3-2
Inspecting the brake fluid level ...............6-27KKey identification number .........................9-1LLeft view...................................................2-1
Light switch ............................................3-10
Luggage strap holders ...........................3-23MMain switch/Steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level/coolant temperature indicator
light ........................................................3-3
Oil level / coolant temperature indicator
light circuit check ...................................3-5PPanel C ....................................................6-8
Parking.....................................................5-5
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INDEX
Pass switch ............................................. 3-9
Periodic maintenance and lubrication ...... 6-3
Pre-operation check list ........................... 4-1RRear brake pedal ................................... 3-12
Rear shock absorber adjustment ........... 3-19
Rear suspension lubrication................... 6-31
Rear wheel installation........................... 6-40
Rear wheel removal............................... 6-39
Recommended combinations of the
front fork and the rear shock
absorber settings................................. 3-22
Right view................................................ 2-2SSeats ..................................................... 3-15
Shifting .................................................... 5-4
Shift pedal ............................................. 3-11
Sidestand .............................................. 3-23
Sidestand/clutch switch operation
check .................................................. 3-24
Sidestand lubrication ............................. 6-31
Spark plug inspection .............................. 6-9
Specifications .......................................... 8-1
Starter (choke) “ ”.............................. 3-15
Starting a warm engine ............................ 5-3
Starting the engine .................................. 5-1
Start switch ............................................ 3-10
Steering inspection ................................ 6-32
Storage.................................................... 7-4
Storage compartment ............................ 3-17
Supporting the motorcycle ..................... 6-37
TTachometer............................................. 3-8
Tail/brake light bulb replacement ........... 6-36
Throttle cable and grip lubrication.......... 6-30
Throttle cable free play inspection ......... 6-21
Tips for reducing fuel consumption .......... 5-4
Tires...................................................... 6-21
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-40
Troubleshooting chart ........................... 6-41
Turn indicator light................................... 3-2
Turn signal light bulb replacement ......... 6-36
Turn signal switch ................................. 3-10VValve clearance adjustment .................. 6-21
Vehicle identification number................... 9-1WWheel bearings ..................................... 6-33
Wheels .................................................. 6-24
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