Table of contents
Location of important la bels ............1-1
Safety information ............................2-1
Description ........................................3-1
Left view ..........................................3-1
Right view ........................................3-2
Controls and instruments ................3-3
Instrument an d control functions ....4-1
Handlebar switch ............................4-1
Clutch lever .....................................4-1
Shift pedal .......................................4-2
Brake lever ......................................4-2
Brake pedal .....................................4-3
Fuel tank cap ...................................4-3
Fuel ..................................................4-3
Fuel tank breather hose...................4-6
Fuel cock .........................................4-6
Starter (choke) knob ........................4-7
Kickstarter .......................................4-7
Seat .................................................4-7
Adjusting the front fork ....................4-8
Front fork bleeding ........................4-10
Adjusting the shock absorber assembly ....................................4-11
Removable sidestand ....................4-14
YPVS system .................................4-14 For your safety – pre-operation
checks
............................................... 5-1
Operation an d important ri din g
points ................................................. 6-1
Engine break-in............................... 6-1
Starting and warming up a cold engine .......................................... 6-2
Starting a warm engine................... 6-3
Shifting............................................ 6-3
Parking ............................................ 6-4
Perio dic maintenance an d
a d justment ........................................ 7-1
Periodic maintenance and lubrication chart .......................... 7-2
Checking the spark plug................. 7-7
Transmission oil .............................. 7-8
Coolant ........................................... 7-9
Cleaning the air filter element ....... 7-11
Adjusting the carburetor ............... 7-13
Adjusting the engine idling speed......................................... 7-13
Adjusting the throttle grip free play ............................................ 7-13
Tires .............................................. 7-14
Spoke wheels ............................... 7-16
Adjusting the clutch lever free play ............................................ 7-16
Checking the brake lever free play ............................................ 7-17 Checking the shift pedal ............... 7-18
Checking the front and rear brake
pads ........................................... 7-18
Checking the brake fluid level ....... 7-19
Changing the brake fluid ............... 7-20
Drive chain slack ........................... 7-20
Cleaning and lubricating the drive chain .......................................... 7-22
Checking and lubricating the cables ........................................ 7-22
Checking and lubricating the
throttle grip and cable ............... 7-23
Checking and lubricating the brake and clutch levers ............. 7-23
Checking and lubricating the brake pedal ................................ 7-24
Lubricating the rear suspension.... 7-24
Lubricating the swingarm pivots ... 7-24
Checking the front fork ................. 7-25
Checking the steering ................... 7-25
Checking the wheel bearings ........ 7-26
Supporting the motorcycle ........... 7-26
Front wheel ................................... 7-26
Rear wheel .................................... 7-27
Troubleshooting ............................ 7-29
Troubleshooting chart ................... 7-30
Motorcycle care an d stora ge .......... 8-1
Matte color caution ......................... 8-1
Care................................................. 8-1
Storage............................................ 8-3
UB4B83E0.book Page 1 Thursday, September 9, 2021 8:47 AM
Safety information
2-3
2
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loa din g
Adding accessories to your motorcycle
can adversely affect stability and han-
dling if the weight distribution of the
motorcycle is changed. To avoid the
possibility of an accident, use extreme
caution when adding accessories to
your motorcycle. Use extra care when
riding a motorcycle that has added ac-
cessories. Here are some general
guidelines to follow if adding accesso-
ries to your motorcycle: Operation of an overload
ed vehicle
coul d cause an acci dent.
The weight of the operator must
not exceed 62.0 kg (137 lb).
Accessory weight should be kept
as low and close to the motorcy-
cle as possible. Securely pack
your heaviest items as close to the
center of the vehicle as possible
and make sure to distribute the
weight as evenly as possible on
both sides of the motorcycle to
minimize imbalance or instability.
Shifting weights can create a sud-
den imbalance. Make sure that
accessories are securely attached
to the motorcycle before riding.
Check accessory mounts fre-
quently.
• Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy items to the handlebar, front
fork, or front fender. Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and ac-
cessories or offer other modifications
for Yamaha vehicles. Yamaha is not in
a position to test the products that
these aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories, an
d
Mo difications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accesso-
ries or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
UB4B83E0.book Page 3 Thursday, September 9, 2021 8:47 AM
Safety information
2-5
2
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce exces-
sively during transport.
UB4B83E0.book Page 5 Thursday, September 9, 2021 8:47 AM
Instrument and control functions
4-9
4
3. Install the protector.
TIP Install the protector so that the
side with the notch is facing rear-
ward.
When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica-
tions, however such adjustments
are ineffective and may damage
the suspension.
Compression dampin g force
1. Remove the rubber cap by pulling it out of the front fork leg.
2. Turn the adjusting screw in direc- tion (a) to increase the compres-
sion damping force. Turn the
adjusting screw in direction (b) to
decrease the compression damp-
ing force. To set the compression
damping force, turn the adjuster in
direction (a) until it stops, and then
count the clicks in direction (b).
1. Rebound damping force adjusting screwReboun d d ampin g settin g:
Minimum (soft): 20 click(s) in direction (b)
Standard: 7 click(s) in direction (b)
Maximum (hard):
1 click(s) in direction (b)
1 1
(b) (b)
(a) (a) (b)
(a)
(b) (b)
(a) (a) (b)
(a)
1. Notch
1
1. Rubber cap
2. Compression damping force adjusting screw
2
1
(a)
(b)
UB4B83E0.book Page 9 Thursday, September 9, 2021 8:47 AM
Instrument and control functions
4-10
4
3. Install the rubber cap.
TIPWhen turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica-
tions, however such adjustments
are ineffective and may damage
the suspension.
EAU84390
Front fork blee din gWhen riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the air from each front fork leg.
WARNING
EWA10201
Always blee d b oth fork le gs, other-
wise poor han dlin g an d loss of sta-
b ility may result.To bleed the front fork legs1. Remove the protector.
2. Place the motorcycle on a suitable
stand. (See page 7-26.) 3. Make sure the front wheel is off
the ground and the area near the
bleed screws is clean.
4. Remove the bleed screws.
5. Wait a few seconds, and then in- stall the bleed screws.
6. Install the protector.
Compression dampin g settin g:
Minimum (soft):
20 click(s) in direction (b)
Standard:
10 (YZ85LW, YZ85LWN)
12 (YZ85, YZ85N) click(s) in di-
rection (b)
Maximum (hard): 1 click(s) in direction (b)
1. Protector
1
1. Bleed screw
1
UB4B83E0.book Page 10 Thursday, September 9, 2021 8:47 AM
Instrument and control functions
4-13
4
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica-
tions, however such adjustments
are ineffective and may damage
the suspension.Compression dampin g force
Turn the adjusting screw in direction (a)
to increase the compression damping
force.
Turn the adjusting screw in direction (b)
to decrease the compression damping
force.
To set the compression damping
force, turn the adjuster in direction (a)
until it stops, and then count the clicks
in direction (b).
TIP When turning the damping force
adjuster in direction (a), the 0 click
position and the 1 click position
may be the same.
When turning the damping force
adjuster in direction (b), it may
click beyond the stated specifica- tions, however such adjustments
are ineffective and may damage
the suspension.
WARNING
EWA10222
This shock a
bsor ber assem bly con-
tains hig hly pressurize d nitro gen
g as. Rea d an d un derstan d the fol-
lowin g information before han dlin g
the shock a bsor ber assem bly.
Do not tamper with or attempt
to open the cylind er assembly.
Do not su bject the shock a b-
sor ber assem bly to an open
flame or other hi gh heat source.
This may cause the unit to ex-
plo de due to excessive gas
pressure.
Do not deform or damag e the
cylin der in any way. Cylin der
d ama ge will result in poor
d ampin g performance.
Do not dispose of a d amaged or
worn-out shock a bsor ber as-
sem bly y
ourself. Take the shock
a b sor ber assem bly to a Yamaha
d ealer for any service.
1. Compression damping force adjusting
screw
Compression dampin g setting :
Minimum (soft): 15 click(s) in direction (b)
Standard: 10 (YZ85LW, YZ85LWN)
9 (YZ85, YZ85N) click(s) in direc-
tion (b)
Maximum (hard): 1 click(s) in direction (b)
1 1
(a) (a)
(b) (b) (a)
(b)
UB4B83E0.book Page 13 Thursday, September 9, 2021 8:47 AM
Periodic maintenance an d a djustment
7-5
7
23 *Front fork • Check operation and for oil leakage.
• Adjust if necessary.
• Clean dust seal and lubricate with lithium-
soap-based grease. √√
• Replace fork oil. √√
• Replace oil seals. √
24 *Shock ab
sorber as-
sem bly • Check operation and adjust.
• Tighten if necessary.
√√
• Lubricate with lithium-soap-based grease. √√
(After
washing
the motor-
cycle or rid- ing in the rain.)
25 *Drive chain roller an
d
support g uide • Check for wear or damage.
• Replace if necessary.
√
26 *Rear suspension • Check operation and tighten if necessary.
√√
• Lubricate with molybdenum disulfide grease. √√
27 *Swin
garm pivot bear-
in gs • Check bearing assemblies for looseness.
• Lubricate with molybdenum disulfide
grease. √√
28 *Steerin g hea d • Check operation, free play, and tighten if
necessary. √√
• Clean and lubricate with lithium-soap- based grease. √
• Replace bearings. √
NO. ITEM
ROUTINEAfter
break-
in Every race Every thir
d
race Every fifth
race As require
dUB4B83E0.book Page 5 Thursday, September 9, 2021 8:47 AM
Specifications
9-2
9
Rear brake:Type:
Hydraulic single disc brakeFront suspension:Type:Telescopic forkRear suspension:Type:
Swingarm (link suspension)
UB4B83E0.book Page 2 Thursday, September 9, 2021 8:47 AM