YAMAHA YZ65 2018 Manual PDF

Periodic maintenance an d a djustment
7-22
7
TIP
Using the alignment marks on the drive
chain pullers and the notch on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position 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.
EAU23018
Cleanin g an d lu bricatin g the
d rive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
NOTICE
ECA10584
The drive chain must b e lubricated
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.
1. Remove all dirt and mud from the
drive chain with a brush or cloth.
TIP
For a thorough cleaning, have a
Yamaha dealer remove the drive chain and soak it in solvent.
2. Spray Yamaha chain lubricant or other suitable chain lubricant on
the entire chain, making sure that
all side plates and rollers have
been sufficiently oiled.
1. Notch
2. Alignment mark
3. Drive chain puller
Tightening torques:
Locknut: 21 N·m (2.1 kgf·m, 15 lb·ft)
Axle nut:
80 N·m (8.0 kgf·m, 59 lb·ft)
12
3
UBR880E0.book Page 22 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-23
7
EAU23098
Checkin g an d lu bricatin g the
cab les
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubri-
cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re-
place it. WARNING! Dama ge to the
outer housin g of cab les may result
in internal rustin g an d cause inter-
ference with ca ble movement. Re-
place damag ed cab les as soon as
possi ble to prevent unsafe con di-
tions.
[EWA10712] EAU23115
Checkin
g an d lu bricatin g the
throttle grip an d cab le
The operation of the throttle grip
should be checked before each ride. In
addition, the cable should be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
chart.
The throttle cable is equipped with a
rubber cover. Make sure that the cover
is securely installed. Even though the
cover is installed correctly, it does not
completely protect the cable from wa-
ter entry. Therefore, use care not to
pour water directly onto the cover or
cable when washing the vehicle. If the
cable or cover becomes dirty, wipe
clean with a moist cloth.
Recommen ded lu bricant:
Yamaha cable lubricant or other
suitable cable lubricant
UBR880E0.book Page 23 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-24
7
EAU23144
Checkin g an d lu bricatin g the
b rake an d clutch levers
The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lu-
bricated if necessary.
Brake lever
Clutch lever
EAU23185
Checkin g an d lu bricatin g the
b rake pe dal
The operation of the brake pedal
should be checked before each ride,
and the pedal pivot should be lubricat-
ed if necessary.
Recommen ded lu bricants:
Brake lever: Silicone grease
Clutch lever: Lithium-soap-based grease
Recommen ded lu bricant:
Lithium-soap-based grease
UBR880E0.book Page 24 Friday, February 16, 2018 8:32 AM

Periodic maintenance and adjustment
7-25
7
EAU85250
Lubricating the rear suspen-
sion
The pivoting points of the rear suspen-
sion must be lubricated by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAUM2701
Lubricating the swingarm piv-
ots
The swingarm pivots must be lubricat-
ed at the intervals specified in the peri-
odic maintenance and lubrication
chart.
Recommended lubricant:Molybdenum disulfide grease
Recommended lubricant:Molybdenum disulfide grease
UBR880E0.book Page 25 Friday, April 6, 2018 11:11 AM

Periodic maintenance an d a djustment
7-26
7
EAU23273
Checkin g the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the con dition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. WARNING! To avoi d injury,
securely support the vehicle so
there is no dan ger of it fallin g
over.
[EWA10752]
2. While applying the front brake, push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
NOTICE
ECA10591
If any damag e is foun d or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU23285
Checkin g the steerin g
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
periodic maintenance and lubrication
chart.
1. Raise the front wheel off the ground. (See page 7-27.)
WARNING! To avoi d injury, se-
curely support the vehicle so
there is no dan ger of it fallin g
over.
[EWA10752]
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 steer-
ing.
UBR880E0.book Page 26 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-27
7
EAU23292
Checkin g the wheel bearin gs
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAU75190
Supportin g the motorcycle
Since this model is not equipped with a
centerstand, use a maintenance stand
when removing the front or rear wheel,
adjusting the chain or washing the ve-
hicle, etc.
Check that the motorcycle is in a stable
and level position before starting any
maintenance.
TIP
If a suitable maintenance stand is not
available, a strong wooden box can be
used instead.
1. Maintenance stand (for off-road motorcycle)
1
UBR880E0.book Page 27 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-28
7
EAU24361
Front wheel
EAU56372
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no d anger of it
fallin g over.
1. Loosen the axle nut.
2. Place the motorcycle on a suitable
stand. (See page 7-27.)
3. Remove the axle nut and washer.
4. Pull out the wheel axle. 5. Remove the wheel.
NOTICE: Do
not apply the b rake after the
wheel an d b rake disc have been
remove d, otherwise the brake
pa ds will be forced shut.
[ECA11073]
To install the front wheel
1. Make sure the brake pads have not been forced shut.
2. Lift up the wheel between the fork legs.
3. Insert the wheel axle from the right side.
4. Install the washer and axle nut.
5. Tighten the axle nut to the speci- fied torque.
1. Washer
2. Axle nut
1. Wheel axle
2
1
1
Tightenin g torque:
Axle nut: 70 N·m (7.0 kgf·m, 52 lb·ft)
UBR880E0.book Page 28 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-29
7
EAU25081
Rear wheel
EAU84051
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no d anger of it
fallin g over.
1. Loosen the axle nut.
2. Place the motorcycle on a suitable
stand. (See page 7-27.)
3. Loosen the locknut, and then turn the drive chain slack adjusting bolt
in direction (a). Repeat for the oth-
er side. 4. Remove the axle nut and washer.
5. Push the wheel forward and re-
move the drive chain from the rear
sprocket.
6. While supporting the brake caliper bracket, pull out the wheel axle.
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 be forced shut.
[ECA11073]
TIP
If the drive chain is difficult to re-
move, remove the wheel axle first.
 For easy installation, rest the drive
chain on top of the swingarm.
To install the rear wheel
1. Make sure the brake pads have not been forced shut.
2. Install the wheel, the brake caliper bracket and drive chain pullers by
inserting the wheel axle from the
left side.
1. Axle nut
2. Washer
1. Drive chain slack adjusting bolt
2. Locknut
3. Drive chain puller
12
23
(a)1
1. Wheel axle
1
UBR880E0.book Page 29 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-30
7
TIP
Make sure the slot in the brake caliper
bracket is fit over the retainer on the
swingarm.
3. Install the drive chain onto the rear
sprocket.
4. Install the washer and axle nut.
5. Adjust the drive chain slack. (See page 7-21.)
EAU25872
Trou bleshootin g
Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, do
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water
heaters or furnaces. Gasoline or
g asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
1. Retainer
2. Slot
1
2
UBR880E0.book Page 30 Friday, February 16, 2018 8:32 AM

Periodic maintenance an d a djustment
7-31
7
EAU66360
Trou bleshootin g charts
Startin g pro blems or poor en gine performance
1. FuelThere is enough fuel.
There is no fuel.
Check the ignition.
Supply fuel.The engine does not
start.
Check the ignition.
Open the throttle
halfw ay and operate
the kickstarter.Wipe off with a dry
cloth and correct the
spark plug gap, or
replace the spark
plug.
2. IgnitionW et
Dry
There is compression.
There is no
compression.
The engine does not start.
Ha ve a Yamaha dealer check the v ehicle.
Have a Yamaha dealer check the v ehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
v ehicle.
Remo ve the spark
plug and check
the electrodes.
Operate the
kickstarter.
Check the fuel le vel
in the fuel tank.
3. Compression
UBR880E0.book Page 31 Friday, February 16, 2018 8:32 AM