2012 YAMAHA YZ85 oil level

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 ................... 4-12 FOR 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 ........................................... 7-18 Checking 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 .......................... 7-22
Cleaning and lubricating the drive chain .......................... 7-23
Checking and lubricating the cables ................................. 7-23
Checking and lubricating
the throttle grip and cable ......... 7-24
Checking and lubricating the brake and clutch levers ....... 7-24
Checking and lubricating the brake pedal ......................... 7-25
Lubricating the swingarm pivots ... 7-25
Lubricating the rear suspension ... 7-25
Checking the front fork ................. 7-26
Checking the steering .................. 7-26
Checking the wheel bearings ....... 7-27
Supporting the motorcycle ........... 7-27
Front wheel .................................. 7-28
Rear wheel ................................... 7-29
Troubleshooting ........................... 7-30
Troubleshooting charts ................. 7-32
MOTORCYCLE CARE AND
STORAGE .......................................... 8-1
Matte color caution ......................... 8-1
Care ............................................... 8-1
U1SN80E0.book Page 1 Thursday, June 9, 2011 11:24 AM

INSTRUMENT AND CONTROL FUNCTIONS
4-4
4
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a pump octane number
[(R+M)/2] of 91 or higher, or a research
octane number of 95 or higher. If
knocking (or pinging) occurs, use a
gasoline of a different brand.
If the recommended 2-stroke engine oil
is not available, use an equivalent oil.
NOTICE
ECA15551
Never mix two brands of 2-stroke en-
gine oil in the same batch. Always
use the same type of oil to ensure
maximum engine performance.
Should it be necessary to use a dif-
ferent oil brand, be sure to drain the
fuel tank and the carburetor float
chamber of the old premixed fuel
prior to filling with the new type.
Filling the fuel tank
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
3. Wipe up any spilled fuel immedi- ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
1. Maximum fuel level
2. Fuel tank filler tube
U1SN80E0.book Page 4 Thursday, June 9, 2011 11:24 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
Fuel 
Check 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 oil 
Check oil level in transmission case.
 If necessary, add recommended oil to specified level. 7-9
Coolant 
Check coolant level.
 If necessary, add recommended coolant to specified level.
 Check cooling system for leakage. 7-10
Front brake 
Check 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 specified brake fluid to specified level.
 Check hydraulic system for leakage. 7-19, 7-20
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-5
7
√ √
21 *Brakes 
Adjust 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 ROUTINE
After
break-in Every
race Every
third race Every
fifth race As
required
√
√
√
23 *Shock absorber assem-
bly 
Check operation and adjust.
 Tighten if necessary.
 Lubricate with
lithium-soap-based grease
. √(After
washing the
motorcycle or riding in the rain)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-9
7
To install the spark plug
1. Clean the surface of the spark plug gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
2. Install the spark plug with the spark plug wrench, and then tight-
en it to the specified torque.
TIPIf a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4 –1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.3. Install the spark plug cap.
EAU41448
Transmission oil The transmission must be checked for
oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the transmission oil must be
changed at the intervals specified in the
periodic maintenance and lubrication
chart. 1. Start the engine, warm it up for several minutes, and then turn it
off.
2. Place the motorcycle on a level surface and hold it in an upright po-
sition.
3. Place an oil pan under the trans- mission case to collect the used
oil.
4. Remove the oil filler cap, the trans- mission oil drain bolt and its gasket
to drain the oil from the transmis-
sion. 5. Install the drain bolt and its new
gasket, and then tighten the bolt to
the specified torque.
6. Refill with the specified amount of the recommended transmission
oil, and then install and tighten the
oil filler cap.
Tightening torque:Spark plug:20 Nm (2.0 m ·kgf, 14 ft ·lbf)
1. Transmission oil filler cap
2. Transmission oil drain bolt
3. Gasket
Tightening torque:
Transmission oil drain bolt:
10 Nm (1.0 m ·kgf, 7.2 ft ·lbf)
Recommended transmission oil: See page 9-1.
Oil change quantity: 0.50 L (0.53 US qt, 0.44 Imp.qt)
2 1
2
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-10
7
NOTICE
ECA10452


In order to prevent clutch slip-
page (since the transmission oil
also lubricates the clutch), do
not mix any chemical additives.
Do not use oils with a diesel
specification of “CD ” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ ENERGY CONSERVING II ” or
higher.


Make sure that no foreign mate-
rial enters the transmission.
7. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAUM1294
To check the coolant level1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.
2. Remove the radiator cap and check the coolant level in the radi-
ator. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]
TIP

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
TIPThe coolant should be at the bottom of
the radiator filler neck. The level will
change with variation of engine temper-
ature.3. If the coolant is below this level, add coolant, and then install the
radiator cap. NOTICE: If coolant
1. Radiator cap
1. Correct coolant level
U1SN80E0.book Page 10 Thursday, June 9, 2011 11:24 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-21
7


Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.


Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.


Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
NOTICE
ECA17640
Brake fluid may damage painted sur-
faces or plastic parts. Always clean
up spilled fluid immediately.As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake sys-
tem leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brakefluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAU22731
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the master cylinders and
calipers as well as the brake hoses re-
placed at the intervals listed below or
whenever they are damaged or leak-
ing.

Oil seals: Replace every two
years.


Brake hoses: Replace every four
years.
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-26
7
EAU23272
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
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]
2. While applying the front brake, push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU23283
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.1. Place a stand under the engine to raise the front wheel off the
ground. (See page 7-27 for more
information.) WARNING! To
avoid injury, securely support
the vehicle so there is no danger
of it falling over.
[EWA10751]
2. Hold the lower ends of the front fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
U1SN80E0.book Page 26 Thursday, June 9, 2011 11:24 AM