2001 YAMAHA YZF-R6 suspension

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
Handlebar switches ............................................. 3-7
Clutch lever .......................................................... 3-9
Shift pedal ............................................................ 3-9
Brake lever ........................................................... 3-9
Brake pedal ........................................................ 3-10
Anti-theft alarm (optional) .................................. 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 ............................................................ 3-21
Luggage strap holders ...................................... 3-22
Sidestand .......................................................... 3-22
Ignition circuit cut-off system ............................. 3-23
E_5mt.book Page 1 Monday, September 18, 2000 9:08 AM

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. @1. Spring preload adjusting bolt
1. Current setting
2. Front fork cap boltCI-18E
Maximum (hard)
Setting
1
2
3
4
5
6
7
8
StandardMinimum (soft)
E_5mt.book Page 17 Monday, September 18, 2000 9:08 AM

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-01E
Rebound damping force
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting knob in di-
rection
a. To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
knob in direction
b.CI-03E
1. Spring preload adjusting ring
2. Special wrench
3. Position indicator
Minimum
(soft)Stan-
dardMaximum (hard)
Setting123 4 56789
1. Rebound damping force adjusting knobMinimum (soft) 20 clicks in direction
b*
Standard 9 clicks in direction
b*
Maximum (hard) 3 clicks in direction
b*
* With the adjusting knob fully turned in direction
a
E_5mt.book Page 19 Monday, September 18, 2000 9:08 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-21
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 1–8 1–10 1–9 1–7 4–12 3–20
With passenger 1–8 1–10 1–9 4–9 1–8 3–7
E_5mt.book Page 21 Monday, September 18, 2000 9:08 AM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-3
Removing and installing cowlings and panels ..... 6-6
Cowlings A and B ................................................. 6-6
Checking the spark plugs .................................... 6-9
Engine oil and oil filter cartridge ........................ 6-10
Coolant .............................................................. 6-13
Checking the air filter element ........................... 6-17
Air intake duct .................................................... 6-20
Adjusting the carburetors ................................... 6-20
Adjusting the engine idling speed ...................... 6-21
Adjusting the throttle cable free play .................. 6-21
Adjusting the valve clearance ............................ 6-22
Tires ................................................................... 6-22
Wheels ............................................................... 6-25
Adjusting the clutch lever free play .................... 6-25
Adjusting the brake pedal position ..................... 6-27
Adjusting the rear brake light switch .................. 6-27
Checking the front and rear brake pads ............. 6-28
Checking the brake fluid level ............................ 6-29
Changing the brake fluid .................................... 6-30
Drive chain slack ................................................ 6-31Lubricating the drive chain ................................ 6-32
Checking and lubricating the cables ................. 6-33
Checking and lubricating the throttle
grip and cable ................................................. 6-33
Lubricating the brake pedal ............................... 6-34
Checking and lubricating the brake and
clutch levers .................................................... 6-34
Checking and lubricating the sidestand ............ 6-34
Lubricating the rear suspension ........................ 6-35
Checking the front fork ...................................... 6-35
Checking the steering ....................................... 6-36
Checking the wheel bearings ............................ 6-36
Battery ............................................................... 6-37
Replacing the fuses .......................................... 6-38
Replacing the headlight bulb ............................. 6-39
Tail/brake light ................................................... 6-40
Replacing a turn signal light bulb ...................... 6-40
Supporting the motorcycle ................................ 6-41
Front wheel ....................................................... 6-41
Rear wheel ........................................................ 6-43
Troubleshooting ................................................. 6-44
Troubleshooting charts ...................................... 6-45
E_5mt.book Page 1 Monday, September 18, 2000 9:08 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
9
*Brake hoses• Check for cracks or damage.ÖÖÖÖ Ö
• Replace. (See NOTE on page 6-5.) Every 4 years
10*Wheels• Check runout and for damage.ÖÖÖÖ
11*Tires• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.ÖÖÖÖ
12*Wheel bearings• Check bearing for looseness or damage.ÖÖÖÖ
13*Swingarm• Operation and for excessive play.ÖÖÖÖ
• 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.ÖÖÖÖÖ
• Lubricate with lithium-soap-based grease. Every 20,000 km
16*Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.ÖÖÖÖ Ö
17 Sidestand• Check operation.
• Lubricate.ÖÖÖÖ Ö
18*Sidestand switch• Check operation.ÖÖÖÖÖ Ö
19*Front fork• Check operation and for oil leakage.ÖÖÖÖ
20*Rear shock absorber
assembly• Check operation and shock absorber for oil leakage.ÖÖÖÖ
21*Rear suspension relay
arm and connecting arm
pivoting points• Check operation.ÖÖÖÖ
• Lubricate with lithium-soap-based grease.ÖÖ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
E_5mt_Periodic.fm Page 4 Tuesday, December 12, 2000 5:49 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
6
EWA00012
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. l
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.
l
Do not carry along loosely
packed items, which can shift
during a ride.
l
Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.
l
Adjust the suspension and tire
air pressure with regard to the
load.
l
Check the tire condition and air
pressure before each ride.
@
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.CE-08ENOTE:@ The tire tread depth limits may differ
from country to country. Always comply
with the local regulations. @1. Tire sidewall
a. Tire tread depthMinimum tire tread depth
(front and rear)1.6 mm
E_5mt.book Page 23 Monday, September 18, 2000 9:08 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
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.To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
EC000098
CAUTION:@ If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it. @
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
E_5mt.book Page 35 Monday, September 18, 2000 9:08 AM