suspension YAMAHA YZF-R6 2002 Owners Manual

3
INSTRUMENT AND CONTROL FUNCTIONS
Main switch/steering lock ..................................... 3-1
Indicator and warning lights ................................ 3-2
Speedometer unit ................................................ 3-5
Tachometer .......................................................... 3-6
Self-diagnosis device ........................................... 3-7
Anti-theft alarm (optional) .................................... 3-7
Handlebar switches ............................................. 3-8
Clutch lever .......................................................... 3-9
Shift pedal ............................................................ 3-9
Brake lever ......................................................... 3-10
Brake pedal ........................................................ 3-10
Fuel tank cap ..................................................... 3-11
Fuel .................................................................... 3-11Fuel tank breather hose .................................... 3-12
Starter (choke) lever........................................... 3-13
Seats ................................................................. 3-13
Helmet holders .................................................. 3-15
Storage compartment ....................................... 3-15
Adjusting the front fork ...................................... 3-17
Adjusting the shock absorber assembly ............ 3-19
Matching the front and rear suspension
settings ............................................................ 3-22
Luggage strap holders ...................................... 3-23
Sidestand .......................................................... 3-23
Ignition circuit cut-off system ............................. 3-24
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
EAU01862
Adjusting the front fork This front fork is equipped with spring
preload adjusting bolts, rebound damp-
ing force adjusting screws and com-
pression damping force adjusting
screws.
EW000035
WARNING
@ Always adjust both fork legs equal-
ly, otherwise poor handling and loss
of stability may result. @
Spring preload
To increase the spring preload and
thereby harden the suspension, turn
the adjusting bolt on each fork leg in di-
rection
a. To decrease the spring pre-
load and thereby soften the
suspension, turn the adjusting bolt on
each fork leg in direction
b.NOTE:@ Align the appropriate groove on the ad-
justing mechanism with the top of the
front fork cap bolt. @
CI-10E
1. Spring preload adjusting bolt
1. Current setting
2. Front fork cap bolt
Setting
Minimum (soft) 8
Standard 7
Maximum (hard) 1
U5MTE1.book Page 17 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-19
3
EAU01863
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing ring, a rebound damping force ad-
justing knob and a compression
damping force adjusting screw.
EC000015
CAUTION:@ Never attempt to turn an adjusting
mechanism beyond the maximum
or minimum settings. @
Spring preload
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring in direction
a. To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring in direction
b.
NOTE:@ Align the appropriate notch in the ad-
justing ring with the position indicator
on the shock absorber. @CI-10E
1. Spring preload adjusting ring
2. Special wrench
3. Position indicator
Setting
Minimum (soft) 1
Standard 4
Maximum (hard) 9
U5MTE1.book Page 19 Monday, August 6, 2001 6:10 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-22
3
EAU01580
Matching the front and rear suspension settings Use this table as a guide to match the suspension and damping adjustments of the front fork and shock absorber assembly
according to various load conditions.CI-05E
EC000015CAUTION:@ Never attempt to turn an adjusting mechanism beyond the maximum or minimum settings. @Load condition Front fork adjustment Shock absorber assembly adjustment
Spring preloadCompression
damping forceRebound
damping forceSpring preloadCompression
damping forceRebound
damping force
Rider only 1–81–91–10 1–74–12 3–20
With passenger 1–81–91–10 4–91–83–7
U5MTE1.book Page 22 Monday, August 6, 2001 6:10 PM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-3
Removing and installing the cowlings and
panel .................................................................. 6-6
Checking the spark plugs .................................... 6-8
Engine oil and oil filter cartridge .......................... 6-9
Coolant .............................................................. 6-13
Checking the air filter element ........................... 6-17
Air intake duct .................................................... 6-19
Adjusting the carburetors ................................... 6-20
Adjusting the engine idling speed ...................... 6-20
Adjusting the throttle cable free play .................. 6-21
Adjusting the valve clearance ............................ 6-21
Tires ................................................................... 6-21
Cast wheels ....................................................... 6-24
Adjusting the clutch lever free play .................... 6-25
Adjusting the brake pedal position ..................... 6-26
Adjusting the rear brake light switch .................. 6-26
Checking the front and rear brake pads ............. 6-27
Checking the brake fluid level ............................ 6-28
Changing the brake fluid .................................... 6-29
Drive chain slack ................................................ 6-29Lubricating the drive chain ................................ 6-31
Checking and lubricating the cables ................. 6-31
Checking and lubricating the throttle grip and
cable ............................................................... 6-32
Checking and lubricating the brake and
clutch levers .................................................... 6-32
Lubricating the brake pedal ............................... 6-32
Checking and lubricating the sidestand ............ 6-33
Lubricating the rear suspension ........................ 6-33
Checking the front fork ...................................... 6-33
Checking the steering ....................................... 6-34
Checking the wheel bearings ............................ 6-35
Battery ............................................................... 6-35
Replacing the fuses .......................................... 6-37
Replacing a headlight bulb ................................ 6-38
Tail/brake light ................................................... 6-39
Replacing a turn signal light bulb ...................... 6-39
Supporting the motorcycle ................................ 6-39
Front wheel ....................................................... 6-40
Rear wheel ........................................................ 6-41
Troubleshooting ................................................. 6-43
Troubleshooting charts ...................................... 6-44
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
10
*Wheels•Check runout and for damage.√√√√
11*Tires•Check tread depth and for damage.
•Replace if necessary.
•Check air pressure.
•Correct if necessary.√√√√ √
12*Wheel bearings•Check bearing for looseness or damage.√√√√
13*Swingarm•Check operation and for excessive play.√√√√
•Lubricate with lithium-soap-based grease. Every 50,000 km
14 Drive chain•Check chain slack.
•Make sure that the rear wheel is properly aligned.
•Clean and lubricate.Every 1,000 km and after washing
the motorcycle or riding in the rain
15*Steering bearings•Check bearing play and steering for roughness.√√√√√
•Lubricate with lithium-soap-based grease. Every 20,000 km
16*Chassis fasteners•Make sure that all nuts, bolts and screws are properly tightened.√√√√ √
17 Sidestand•Check operation.
•Lubricate.√√√√ √
18*Sidestand switch•Check operation.√√√√√ √
19*Front fork•Check operation and for oil leakage.√√√√
20*Shock absorber
assembly•Check operation and shock absorber for oil leakage.√√√√
21*Rear suspension relay
arm and connecting arm
pivoting points•Check operation.√√√√
•Lubricate with lithium-soap-based grease.√√
22*Carburetors•Check starter (choke) operation.
•Adjust engine idling speed and synchronization.√√√√√ √
23 Engine oil•Change.
•Check oil level and vehicle for oil leakage.√√√√√ √
24 Engine oil filter cartridge•Replace.√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (×1,000 km)
ANNUAL
CHECK
1 10203040
U5MTE1.book Page 4 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
CE-01E
CE-07EEWA00012
WARNING
@ Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your motorcycle, you should
keep the following precautions in
mind.

NEVER OVERLOAD THE
MOTORCYCLE! Operation of an
overloaded motorcycle may re-
sult in tire damage, loss of con-
trol, or severe injury. Make sure
that the total weight of rider,
passenger, cargo, and accesso-
ries does not exceed the speci-
fied maximum load for the
vehicle.


Do not carry along loosely
packed items, which can shift
during a ride.


Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.


Adjust the suspension and tire
air pressure with regard to the
load.


Check the tire condition and air
pressure before each ride.
@
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg250 kPa
2.50 kgf/cm
2
2.50 bar250 kPa
2.50 kgf/cm
2
2.50 bar
90 kg–maximum250 kPa
2.50 kgf/cm
2
2.50 bar290 kPa
2.90 kgf/cm
2
2.90 bar
High-speed riding250 kPa
2.50 kgf/cm
2
2.50 bar250 kPa
2.50 kgf/cm
2
2.50 bar
Maximum load* 189 kg
* Total weight of rider, passenger, cargo and
accessories
U5MTE1.book Page 22 Monday, August 6, 2001 6:10 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU03165
Checking and lubricating the
sidestand The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated if
necessary.
EW000113
WARNING
@ If the sidestand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. @
EAU03166
Lubricating the rear
suspension The pivoting points of the rear suspen-
sion must be lubricated at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU02939
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
EW000115
WARNING
@ Securely support the motorcycle so
that there is no danger of it falling
over. @Check the inner tubes for scratches,
damage and excessive oil leakage.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
U5MTE1.book Page 33 Monday, August 6, 2001 6:10 PM

SPECIFICATIONS
8-3
8
Maximum load* 189 kg
Tire air pressure (measured on
cold tires)
Up to 90 kg*
Front 250 kPa (2.50 kgf/cm
2, 2.50 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
90 kg–maximum*
Front 250 kPa (2.50 kgf/cm2, 2.50 bar)
Rear 290 kPa (2.90 kgf/cm2, 2.90 bar)
High-speed riding*
Front 250 kPa (2.50 kgf/cm2, 2.50 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Type Cast wheel
Size 17 × MT 3.50
17 M/C × MT 3.50
Rear
Type Cast wheel
Size 17 × MT 5.50
17 M/C × MT 5.50Brakes
Fr o n t
Type Dual disc brake
Operation Right hand
Fluid DOT 4
Rear
Type Single disc brake
Operation Right foot
Fluid DOT 4
Suspension
Front Telescopic fork
Rear Swingarm (link suspension)
Spring/shock absorber
Front Coil spring / oil damper
Rear Coil spring / gas-oil damper
Wheel travel
Front 130 mm
Rear 120 mm
Electrical system
Ignition system DC-C.D.I.
Charging system
Model A.C. magneto
Standard output 14 V, 320 W@ 5,000 r/min
U5MTE1.book Page 3 Monday, August 6, 2001 6:10 PM

10-INDEXAAir filter element, checking ..................... 6-17
Air intake duct ........................................ 6-19
Anti-theft alarm ........................................3-7BBattery ................................................... 6-35
Brake and clutch levers, checking and
lubricating ............................................ 6-32
Brake fluid, changing ............................. 6-29
Brake fluid level, checking...................... 6-28
Brake lever............................................. 3-10
Brake light switch (rear), adjusting ......... 6-26
Brake pads, checking............................. 6-27
Brake pedal............................................ 3-10
Brake pedal, lubricating.......................... 6-32
Brake pedal position, adjusting .............. 6-26CCables, checking and lubricating............ 6-31
Carburetors, adjusting............................ 6-20
Care.........................................................7-1
Clutch lever ..............................................3-9
Clutch lever free play, adjusting ............. 6-25
Conversion table ......................................8-5
Coolant .................................................. 6-13
Changing .......................................... 6-14
Checking .......................................... 6-13
Cowlings and panel, removing and
installing ................................................6-6DDimmer switch .........................................3-8
Drive chain, lubricating ........................... 6-31
Drive chain slack ................................... 6-29
Adjusting .......................................... 6-30
Checking .......................................... 6-29EEngine break-in ....................................... 5-4
Engine oil and oil filter cartridge ............... 6-9
Engine stop switch................................... 3-8FFront and rear suspension settings ........ 3-22
Front fork, adjusting ............................... 3-17
Front fork, checking ............................... 6-33
Fuel ....................................................... 3-11
Fuel consumption, tips for reducing ......... 5-4
Fuel level warning light ............................ 3-2
Fuel tank breather hose ......................... 3-12
Fuel tank cap ......................................... 3-11
Fuses, replacing .................................... 6-37HHandlebar switches ................................. 3-8
Headlight bulb, replacing ....................... 6-38
Helmet holders ...................................... 3-15
High beam indicator light ......................... 3-2
Horn switch ............................................. 3-8IIdentification numbers ............................. 9-1
Idling speed, adjusting ........................... 6-20
Ignition circuit cut-off system.................. 3-24
Indicator and warning lights ..................... 3-2KKey identification number ........................ 9-1
LLight switch ..............................................3-8
Luggage strap holders ...........................3-23MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level/coolant temperature warning
light ........................................................3-3PParking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-8
Periodic maintenance and lubrication
chart ......................................................6-3
Pre-operation check list ............................4-1SSafety information ....................................1-1
Seats ....................................................... 3-13
Passenger seat .................................. 3-14
Rider seat........................................... 3-13
Self-diagnosis device ...............................3-7
Shifting .....................................................5-3
Shift pedal ................................................3-9
Shift points (for Switzerland only) .............5-3
Shock absorber assembly, adjusting ......3-19
Sidestand ...............................................3-23
Sidestand, checking and lubricating .......6-33
U5MTE1.book Page 1 Monday, August 6, 2001 6:10 PM