brake YAMAHA YZ85 2011 Owners Manual

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS ............................................1-1
SAFETY INFORMATION .................. 2-1
DESCRIPTION .................................. 3-1
Left view .......................................... 3-1
Right view ........................................ 3-2
Controls and instruments ................3-3
INSTRUMENT AND CONTROL
FUNCTIONS....................................... 4-1
Handlebar switch ............................ 4-1
Clutch lever .................................... 4-1
Shift pedal ......................................4-1
Brake lever ..................................... 4-2
Brake pedal .................................... 4-2
Fuel tank cap .................................. 4-3
Fuel ................................................ 4-3
Fuel tank breather hose ................. 4-5
Fuel cock ........................................ 4-5
Starter (choke) knob ....................... 4-6
Kickstarter ......................................4-6
Seat ................................................ 4-7
Adjusting the front fork ................... 4-7
Front fork bleeding ......................... 4-9
Adjusting the shock absorber
assembly ..................................... 4-9
Removable sidestand ................... 4-12FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 6-1
Starting and warming up a cold
engine ......................................... 6-1
Starting a warm engine .................. 6-1
Shifting ........................................... 6-2
Engine break-in .............................. 6-3
Parking ........................................... 6-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 7-1
Periodic maintenance and
lubrication chart .......................... 7-2
Checking the spark plug ................ 7-8
Transmission oil ............................. 7-9
Coolant ........................................ 7-10
Cleaning the air filter element ...... 7-12
Adjusting the carburetor ............... 7-14
Adjusting the engine idling
speed ........................................ 7-14
Adjusting the throttle grip free
play ........................................... 7-15
Tires ............................................. 7-15
Spoke wheels .............................. 7-17
Adjusting the clutch lever free
play ........................................... 7-17
Checking the brake lever free
play ........................................... 7-18Checking the shift pedal ............... 7-19
Checking the front and rear brake
pads .......................................... 7-19
Checking the brake fluid level ...... 7-20
Changing the brake fluid .............. 7-21
Drive chain slack .......................... 7-21
Cleaning and lubricating
the drive chain .......................... 7-23
Checking and lubricating
the cables ................................. 7-23
Checking and lubricating
the throttle grip and cable ......... 7-23
Checking and lubricating
the brake and clutch levers ....... 7-24
Checking and lubricating
the brake pedal ......................... 7-24
Lubricating the swingarm pivots ... 7-25
Lubricating the rear suspension ... 7-25
Checking the front fork ................. 7-25
Checking the steering .................. 7-26
Checking the wheel bearings ....... 7-26
Supporting the motorcycle ........... 7-27
Front wheel .................................. 7-27
Rear wheel ................................... 7-28
Troubleshooting ........................... 7-30
Troubleshooting charts ................. 7-31
MOTORCYCLE CARE AND
STORAGE.......................................... 8-1
Matte color caution ......................... 8-1
Care ............................................... 8-1
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DESCRIPTION
3-2
3
EAU10420
Right view1. Shock absorber assembly compression damping force adjusting screw
(page 4-9)
2. Kickstarter (page 4-6)
3. Front fork rebound damping force adjusting screw (page 4-7)
4. Bleed screw (page 4-9)
5. Front fork compression damping force adjusting screw (page 4-7)
6. Spark plug cap (page 7-8)
7. Transmission oil filler cap (page 7-9)
8. Coolant drain bolt (page 7-11)9. Brake pedal (page 4-2)
10.Transmission oil drain bolt (page 7-9)
11.Shock absorber assembly rebound damping force adjusting screw
(page 4-9)U5PA89E0.book Page 2 Tuesday, June 15, 2010 10:34 AM

DESCRIPTION
3-3
3
EAU10430
Controls and instruments1. Clutch lever (page 4-1)
2. Engine stop button (page 4-1)
3. Brake lever (page 4-2)
4. Throttle grip (page 7-15)
5. Fuel tank cap (page 4-3)
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INSTRUMENT AND CONTROL FUNCTIONS
4-2
4
EAU41262
Brake lever The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the handle-
bar grip.
The brake lever is equipped with a po-
sition adjusting bolt. Adjust the distance
between the brake lever and the han-
dlebar grip as follows.
1. Slide the rubber cover toward the
end of the brake lever.
2. Loosen the locknut.3. While holding the lever pushed
away from the handlebar grip, turn
the adjusting bolt in direction (a) to
increase the distance, and in direc-
tion (b) to decrease it.
4. Tighten the locknut.
5. Slide the rubber cover to its origi-
nal position.
EAU12941
Brake pedal The brake pedal is on the right side of
the motorcycle. To apply the rear
brake, press down on the brake pedal.
1. Rubber cover
2. Brake lever
3. Locknut
4. Adjusting bolt
5. Distance between brake lever and handlebar
grip
143 (a)
(b)
2
5
Distance between the brake lever
and the handlebar grip:
Minimum (shortest):
76 mm (2.99 in)
Standard:
95 mm (3.74 in)
Maximum (longest):
97 mm (3.82 in)
1. Brake pedal
U5PA89E0.book Page 2 Tuesday, June 15, 2010 10:34 AM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-1
5
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Always use a fresh mixture of gasoline and oil.
Check fuel line for leakage.
Check fuel tank breather hose for obstructions, cracks or damage, and check
hose connection.4-3, 4-5
Transmission oilCheck oil level in transmission case.
If necessary, add recommended oil to specified level.7-9
CoolantCheck coolant level.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.7-10
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.7-19, 7-20
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
5
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.7-19, 7-20
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.7-17
Throttle gripMake sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust throttle grip free play and lubricate cable
and grip housing.7-15, 7-23
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.7-21, 7-23
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.
Check for loose spokes and tighten if necessary.7-15, 7-17
Shift pedalMake sure that operation is smooth.
Correct if necessary.7-19
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.7-24
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.7-24
SteeringCheck that the handlebar can be turned smoothly and has no excessive play. 7-26 ITEM CHECKS PAGE
U5PA89E0.book Page 2 Tuesday, June 15, 2010 10:34 AM

OPERATION AND IMPORTANT RIDING POINTS
6-2
6
EAU16671
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.TIPTo shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
NOTICE
ECA10260


Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.


Always use the clutch while
changing gears to avoid damag-
ing the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
EAU16690
To start out and accelerate
1. Pull the clutch lever to disengage
the clutch.
2. Shift the transmission into first
gear.
3. Open the throttle gradually and si-
multaneously release the clutch le-
ver slowly.4. Once the motorcycle has reached
a speed high enough to change
gears, close the throttle, and at the
same time, quickly pull the clutch
lever in.
5. Shift the transmission into second
gear. (Make sure not to shift the
transmission into the neutral posi-
tion.)
6. Open the throttle halfway and
gradually release the clutch lever.
7. Follow the same procedure when
shifting to the next gear.
EAU16710
To decelerate
1. Close the throttle and apply both
the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and
shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
1. Shift pedal
2. Neutral positionU5PA89E0.book Page 2 Tuesday, June 15, 2010 10:34 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-1
7
EAU42072
Periodic inspection, adjustment, and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. Safety is an obligation of the vehi-
cle owner/operator. The most important
points of vehicle inspection, adjust-
ment, and lubrication are explained on
the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, depending on the
weather, terrain, geographical location,
and individual use, the maintenance in-
tervals may need to be shortened.
WARNING
EWA10321
Failure to properly maintain the ve-
hicle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer perform
service.
WARNING
EWA15121
Turn off the engine when performing
maintenance unless otherwise
specified.

A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.


Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 2-1 for more in-
formation about carbon monox-
ide.WARNING
EWA15460
Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool before
touching them.
U5PA89E0.book Page 1 Tuesday, June 15, 2010 10:34 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-5
7
√ √
21*BrakesAdjust lever position and pedal height.
Lubricate pivot points.
Check brake disk surface.
Check fluid level and for leakage.
Tighten brake disk bolts, caliper bolts, master cylinder
bolts and union bolts.√
Replace brake pads.√
Replace brake fluid. Every year√
22*Front fork
Replace oil seals. Replace fork oil. 
Clean dust seal and lubricate with lithium-soap-based
grease.
Adjust if necessary. Check operation and for oil leakage.
√
√√
√ NO. ITEM ROUTINEAfter
break-inEvery
raceEvery
third raceEvery
fifth raceAs
required
√ √
√
23*Shock absorber assem-
blyCheck operation and adjust.
Tighten if necessary.
Lubricate with
lithium-soap-based grease
.√(After
washing
the
motorcycle
or riding in
the rain)
U5PA89E0.book Page 5 Tuesday, June 15, 2010 10:34 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-6
7
EAU42011
TIP

Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid levels.
√ √√
√ 24*Drive chain roller and
support guideReplace if necessary. Check for wear or damage.
√
25*Rear suspensionCheck operation and tighten if necessary.
Lubricate with
lithium-soap-based grease
.
NO. ITEM ROUTINEAfter
break-inEvery
raceEvery
third raceEvery
fifth raceAs
required
√
√
√
√ √ √
√ √√ √
√
√
√
√
√ 26*Steering headCheck operation, free play, and tighten if necessary.
Clean and lubricate with lithium-soap-based grease.
Replace bearings.
27*Tires and wheelsCheck tire air pressure, wheel runout, spokes for
looseness, and tires for wear.
Tighten sprocket bolts if necessary.
Check wheel bearings for looseness.
Lubricate wheel bearings with lithium-soap-based
grease.
Replace wheel bearings.
28*Moving parts and ca-
blesLubricate.
29*Throttle gripCheck operation.
Check throttle grip free play, and adjust if necessary.
Lubricate cable and grip housing.
U5PA89E0.book Page 6 Tuesday, June 15, 2010 10:34 AM