2016 YAMAHA YZ85 lock

Periodic maintenance an d a djustment
7-17
7
EAU65773
A djustin g the clutch lever free
play
The clutch lever free play should mea-
sure 7.0–12.0 mm (0.28–0.47 in) as
shown. Periodically check the clutch
lever free play and, if necessary, adjust
it.
To increase the clutch lever free play,
turn the clutch lever free play adjuster
in direction (a). To decrease the clutch
lever free play, turn the adjuster in di-
rection (b).
TIP
If the specified clutch lever free play
cannot be obtained as described
above, proceed as follows.
1. Fully turn the adjuster in direction
(a) to loosen the clutch cable.
2. Slide the rubber cover and clutch lever free play adjuster back fur-
ther down the clutch cable, and
then loosen the locknut.
3. To increase the clutch lever free play, turn the clutch lever free play
adjusting bolt in direction (a). To
decrease the clutch lever free
play, turn the adjusting bolt in di-
rection (b). 4. Tighten the locknut at the clutch
cable.
5. Slide the clutch lever free play ad- juster and rubber cover to their
original positions, making sure to
align the tab on the adjuster with
the slot in the adjusting bolt.
1. Clutch lever free play
2. Clutch lever free play adjuster
12(b)
(a)
1. Locknut
2. Clutch lever free play adjusting bolt
3. Clutch lever free play adjuster
4. Rubber cover
1. Tab
2. Slot
1234(a)
(b)
1 2
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Periodic maintenance an d a djustment
7-20
7
EAU22582
Checkin g the brake flui d level
Before riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
Front brake
Rear brake
WARNING
EWA15991
Improper maintenance can result in
loss of brakin g a bility. O bserve
these precautions:  Insufficient brake flui d may al-
low air to enter the brake sys-
tem, re ducing brakin g
performance. 
Clean the filler cap before re-
moving . Use only DOT 4 b rake
flui d from a seale d container.
 Use only the specifie d b rake flu-
i d ; otherwise, the ru bber seals
may deteriorate, causin g leak-
a g e.
 Refill with the same type of
brake flui d. A ddin g a brake flui d
other than DOT 4 may result in a
harmful chemical reaction.
 Be careful that water d oes not
enter the brake flui d reservoir
when refillin g. Water will si gnifi-
cantly lower the b oiling point of
the flui d an d may result in vapor
lock.
NOTICE
ECA17641
Brake flui d may d amage painte d
surfaces or plastic parts. Always
clean up spille d flui d imme diately.
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
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fluid level goes down suddenly, have a
Yamaha dealer check the cause before further riding.
1. Minimum level mark
1. Minimum level mark
Specified b rake flui d:
DOT 4
U1SN84E0.book Page 20 Wednesday, June 10, 2015 10:24 AM

Periodic maintenance an d a djustment
7-21
7
EAU51721
Chan gin g the brake flui d
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the oil seals
of the master cylinders and calipers as
well as the brake hoses replaced at the
intervals listed below or whenever they
are damaged or leaking.
 Oil seals: Replace every two
years.
 Brake hoses: Replace every four
years.
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU41413To check the drive chain slack
1. Install the removable sidestand and place the motorcycle on it.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into theneutral position.
3. Measure the drive chain slack as shown.
4. If the drive chain slack is incorrect, adjust it as follows.
EAU41484To a djust the d rive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack. 1. Loosen the axle nut and the lock- nut on each side of the swingarm.
Drive chain slack:35.0–45.0 mm (1.38–1.77 in)
1. Drive chain slack
U1SN84E0.book Page 21 Wednesday, June 10, 2015 10:24 AM

Periodic maintenance an d a djustment
7-22
7
2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward. NOTICE: Improp-
er drive chain slack will over-
loa d the en gine as well as other
vital parts of the motorcycle an d
can lead to chain slippa ge or
b reakag e. To prevent this from
occurrin g, keep the d rive chain
slack within the specified limits.
[ECA10572]
TIP
Using the alignment marks on each
drive chain puller, make sure that both
drive chain pullers are in the same po-
sition for proper wheel alignment.
3. Tighten both locknuts and the axle
nut to the specified torques. 4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
1. Axle nut
2. Drive chain puller
3. Locknut
4. Drive chain slack adjusting bolt
5. Alignment marks
5 4
32
Ti
ghtenin g torques:
Locknut: 14 Nm (1.4 m·kgf, 10 ft·lbf)
Axle nut:
90 Nm (9.0 m·kgf, 65 ft·lbf)
U1SN84E0.book Page 22 Wednesday, June 10, 2015 10:24 AM

Periodic maintenance an d a djustment
7-29
7 To install the front wheel
1. Lift the wheel up between the fork legs.
TIP
Make sure that there is enough space
between the brake pads before install-
ing the wheel.
2. Insert the wheel axle from the rightside.
3. Lower the front wheel so that it is on the ground, install the remov-
able sidestand, and then rest the
motorcycle on it.
4. Install the washer and axle nut, and then tighten the axle nut to the
specified torque.
EAU25081
Rear wheel
EAU56742
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.
1. Loosen the axle nut.
2. Lift the rear wheel off the ground
according to the procedure on
page 7-28.
3. Fully loosen the locknut, and then loosen the drive chain slack ad-
justing bolt on each side of the
swingarm.
4. Remove the axle nut and washer.
5. Push the wheel forward, and then remove the drive chain from the
rear sprocket.
1. Wheel axle
Tightenin g torque:
Axle nut:
70 Nm (7.0 m·kgf, 51 ft·lbf)1. Axle nut
2. Washer
3. Locknut
4. Drive chain slack adjusting bolt
U1SN84E0.book Page 29 Wednesday, June 10, 2015 10:24 AM

Periodic maintenance an d a djustment
7-30
7
TIP
 If the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.
 The drive chain does not need to
be disassembled in order to re-
move and install the rear wheel.
6. While supporting the brake caliper
and slightly lifting the wheel, pull
the wheel axle out.
TIP
A rubber mallet may be useful to tap
the wheel axle out.
7. Remove the wheel. NOTICE: Do
not apply the brake after the
wheel an d b rake disc have been
remove d, otherwise the brake
pa ds will b e forced shut.
[ECA11073]
To install the rear wheel
1. Install the drive chain onto the rear sprocket.
2. Install the wheel and the brake cal- iper bracket by inserting the wheel
axle from the right side.
TIP
Make sure that the slot in the
brake caliper bracket is fit over the
retainer on the swingarm.
 Make sure that there is enough
space between the brake pads
before installing the wheel.
3. Install the washer and axle nut.
4. Lower the rear wheel so that it is
on the ground, install the remov-
able sidestand, and then rest the
motorcycle on it.
5. Adjust the drive chain slack. (See page 7-21.)
6. Tighten the locknuts and the axle nut to their specified torques.
1. Wheel axle
1. Retainer
2. Slot
Tightenin g torque:
Locknut: 14 Nm (1.4 m·kgf, 10 ft·lbf)
Axle nut: 90 Nm (9.0 m·kgf, 65 ft·lbf)
2 1
U1SN84E0.book Page 30 Wednesday, June 10, 2015 10:24 AM

Periodic maintenance an d a djustment
7-33
7 En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot.
Scal din g hot flui d an d steam may b e blown out un der pressure, which
coul d cause serious injury. Be sure to wait until the eng ine has cooled.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly ro-
tate the cap counterclockwise to the detent to allow any resi dual pres-
sure to escape. When the hissin g soun d has stopped , press down on the
cap while turnin g it counterclockwise, an d then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided
that it is changed to the recommended coolant as soon as possible.
Wait until the engine
has cooled.
Add coolant.
(See TIP.)
The coolant level is
OK.
Check the coolant
level in the radiator.There is no leakage.
There is leakage.
The coolant level is
low.
Check the cooling
system for leakage.
Have a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine overheats again,
have a Yamaha dealer check and repair the cooling
system.
U1SN84E0.book Page 33 Wednesday, June 10, 2015 10:24 AM