2014 YAMAHA YZ85 oil

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 ............................................ 7-18
Checking the brake lever free play ............................................ 7-19 Checking the shift pedal ............... 7-19
Checking the front and rear brake
pads ........................................... 7-20
Checking the brake fluid level ....... 7-20
Changing the brake fluid ............... 7-22
Drive chain slack ........................... 7-22
Cleaning and lubricating the drive chain .......................................... 7-23
Checking and lubricating the cables ........................................ 7-24
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 rear suspension.... 7-25
Lubricating the swingarm pivots ... 7-26
Checking the front fork ................. 7-26
Checking the steering ................... 7-27
Checking the wheel bearings ........ 7-27
Supporting the motorcycle ........... 7-28
Front wheel ................................... 7-28
Rear wheel .................................... 7-29
Troubleshooting ............................ 7-31
Troubleshooting charts ................. 7-32
MOTORCYCLE CARE AND
STORAGE .......................................... 8-1
Matte color caution ......................... 8-1
Care................................................. 8-1
U1SN82E0.book Page 1 Friday, June 7, 2013 3:51 PM

LOCATION OF IMPORTANT LABELS
1-2
1For Cana
da
Use premium unleaded
gasoline / oil premix only.
3XJ-2415E-A1
Utiliser de préférence un mélangehuile/super sans plomb.
3XJ-2415E-B1
4SR-2416E-00
3JK-82377-00
This spark ignition system meets all requirements
of the Canadian Interference Causing Equipment
Regulations.
Ce système d’allumage par étincelle de véhicule
respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
WARNING
BEFORE YOU OPERATE THIS VEHICLE, READ
THE OWNER’S MANUAL AND ALL LABELS.
NEVER CARRY A PASSENGER. You increase
your risk of losing control if you carry a passenger.NEVER OPERATE THIS VEHICLE ON PUBLIC
ROADS. You can collide with another vehicle if
you operate this vehicle on a public road.ALWAYS WEAR AN APPROVED MOTORCYCLE
HELMET, eye protection, and protective clothing.
EXPERIENCED RIDER ONLY.
5PA-2118K-00
2
4
6
1
3
5
U1SN82E0.book Page 2 Friday, June 7, 2013 3:51 PM

DESCRIPTION
3-2
3
EAU10421
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)
U1SN82E0.book Page 2 Friday, June 7, 2013 3:51 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-3
4
EAU13183
Fuel tank capTo remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, insert it into
the tank opening, and then turn it
clockwise.
WARNING
EWA11092
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leakin g fuel is a fire hazar d.
EAU41834
FuelThis motorcycle has been designed to
use a premixed fuel of gasoline and 2-
stroke engine oil. Always mix the gaso-
line and oil in a clean container before
filling the fuel tank.NOTICE
ECA15602
Always use fresh gasoline, an d fill
the fuel tank with a fresh mix just be-
fore ri din g. Do not use premixed fuel
that is more than a few hours ol d.Mixin g g asoline an d 2-stroke en gine
oil
Pour 2-stroke engine oil into a clean
container, and then add gasoline. To
mix the fuel thoroughly, shake the con-
tainer from side to side.
NOTICE
ECA15591
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the piston rin gs as well as to
the exhaust system.
1. Fuel tank cap
1. 2-stroke engine oil
2. Gasoline
3. Container
Recommen ded fuel:
Premium unleaded gasoline only
Recommen ded 2-stroke en gine oil:
See page 9-1.
Fuel tank capacity:
5.0 L (1.32 US gal, 1.10 Imp.gal)
Mixin g ratios ( gasoline to oil):
Break-in period: 15:1
After break-in: 30:1
U1SN82E0.book Page 3 Friday, June 7, 2013 3:51 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-4
4Your Yamaha engine has been de-
signed to use premium unleaded gas-
oline 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
ECA15552
Never mix two
bran ds of 2-stroke
en gine oil in the same batch. Always
use the same type of oil to ensure
maximum en gine performance.
Shoul d it b e necessary to use a dif-
ferent oil bran d, b e sure to d rain the
fuel tank an d the car buretor float
cham ber of the ol d premixe d fuel
prior to fillin g with the new type.
Fillin g the fuel tank
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d g asoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, 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 spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can
cause injury or death. Han dle gaso-
line with care. Never siphon gasoline
b y mouth. If you shoul d swallow
some gasoline or inhale a lot of g as-
oline vapor, or g et some gasoline in
your eyes, see your doctor imme di-
ately. If g asoline spills on your skin,
1. Maximum fuel level
2. Fuel tank filler tube
U1SN82E0.book Page 4 Friday, June 7, 2013 3:51 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-1
5
EAU15598
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
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y 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. 7-20, 7-20
U1SN82E0.book Page 1 Friday, June 7, 2013 3:51 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-3
5
Front fork and rear shock a b-
sor ber assem bly • Check that they operate smoothly and there is no oil leakage. 4-7, 4-9, 4-9, 7-26
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
—
Movin g parts an d cab les • Check that the control cables move smoothly.
• Check that the control cables are not caught when the handlebars are turned or
when the front forks travel up and down.
• Lubricate moving parts and cables if necessary. 7-24, 7-24, 7-26, 7-25
Exhaust system • Check that the exhaust pipe is tightly mounted and has no cracks.
• Check for leakage. —
I g nition system • Check that all leads and cables are properly connected. 7-8
ITEM
CHECKS PAGE
U1SN82E0.book Page 3 Friday, June 7, 2013 3:51 PM

OPERATION AND IMPORTANT RIDING POINTS
6-3
6
EAU41504
Engine break-in
WARNING
EWA10322
Failure to properly maintain the vehi-
cle or performin g maintenance ac-
tivities incorrectly may increase
your risk of injury or death durin g
service or while usin g the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha d ealer perform
service.1. Before starting the engine, fill the fuel tank with a break-in oil-fuel
mixture as follows.
2. Start and warm up the engine. Check the operation of the con-
trols and the engine stop button.
(See page 4-1.)
3. Operate the motorcycle in the lower gears at moderate throttle
openings for five to eight minutes.
Stop the engine and check the spark plug condition (see page
7-8); it will show a rich condition
during break-in.
4. Allow the engine to cool. Restart the engine and operate the motor-
cycle as in the step above for five
minutes. Then, very briefly shift to
the higher gears and check the
full-throttle response. Stop the en-
gine and check the spark plug.
5. After again allowing the engine to cool, restart and run the motorcy-
cle for five more minutes. Full
throttle and the higher gears may
be used, but sustained full-throttle
operation should be avoided.
Stop the engine and check the
spark plug again.
6. Allow the engine to cool, remove the cylinder head and cylinder,
and inspect the piston and cylin-
der. Remove any high spots on
the piston with #600-grit wet
sandpaper. Clean all components
and carefully reassemble the cyl-
inder head and cylinder.
7. Drain the break-in oil-fuel mixture from the fuel tank and refill with
the specified mix. (See page 4-3.) 8. Start the engine and check the op-
eration of the motorcycle through-
out its entire operating range.
Stop the engine and check the
spark plug condition. Restart the
motorcycle and ride it for about 10
to 15 more minutes. The motorcy-
cle will now be ready to ride nor-
mally.
After the engine break-in period, thor-
oughly check the motorcycle for loose
parts, oil leakage and any other prob-
lems. Be sure to inspect and make ad-
justments thoroughly, especially cable
and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight-
en if necessary.
NOTICE
ECA15561
 When any of the followin g parts
have been replaced , they must
b e broken in.
Cylin der or crankshaft:
A bout one hour of b reak-in op-
eration is necessary.
Piston, rin gs or transmission
g ears:
Recommen ded 2-stroke en gine oil:
See page 9-1.
Mixin g ratio ( gasoline to oil):
15:1
U1SN82E0.book Page 3 Friday, June 7, 2013 3:51 PM