lock YAMAHA YZ85 2017 User Guide

Periodic maintenance an d a djustment
7-22
7
EAU41485To 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.
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.
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 axlenut 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
Tightening torques:
Locknut: 14 N·m (1.4 kgf·m, 10 lb·ft)
Axle nut: 90 N·m (9.0 kgf·m, 65 lb·ft)
5 4
32
U1SN85E0.book Page 22 Friday, June 10, 2016 1:20 PM

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
EAU56743
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.
(See page 7-28.)
3. 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 N·m (7.0 kgf·m, 51 lb·ft)1. Axle nut
2. Washer
3. Locknut
4. Drive chain slack adjusting bolt
U1SN85E0.book Page 29 Friday, June 10, 2016 1:20 PM

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.
 The drive chain pullers may fall out
when removing the wheel axle.
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. Insert the rear wheel between the swingarm and then install the
drive chain onto the rear sprocket. 2. Install the brake caliper and drive
chain pullers, and then install the
wheel 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 N·m (1.4 kgf·m, 10 lb·ft)
Axle nut: 90 N·m (9.0 kgf·m, 65 lb·ft)
2 1
U1SN85E0.book Page 30 Friday, June 10, 2016 1:20 PM

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.
U1SN85E0.book Page 33 Friday, June 10, 2016 1:20 PM