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6-14
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIRTire inspectionZAUM00**
1
2
1. Tire tread depth
2. Tire sidewallThe tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the sidewall
is cracked, have a Yamaha dealer re-
place the tire immediately.Minimum tire tread depth (front and
rear):
0.8 mm (0.03 in)
NOTE:
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.Tire information
This model is equipped with tubeless
tires.Front tire:
Size:
120/90-10 57J
Manufacturer/model:
CHENG SHIN/C-6022
Rear tire:
Size:
120/90-10 57J
Manufacturer/model:
CHENG SHIN/C-6022
EWA10470
w● ●● ●
●
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the ve-
hicle with excessively worn tires
decreases riding stability and
can lead to loss of control.
● ●● ●
●
The replacement of all wheel andbrake related parts, including the
tires, should be left to a Yamaha
dealer, who has the necessary
professional knowledge and ex-
perience.
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6-15
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
Wheels
Brake lever free play, adjusting
EAU22130
Adjusting the brake lever free
play
1
ZAUM00**1. Front brake lever free playThe brake lever free play should mea-
sure 10 ~ 20 mm (0.4 ~ 0.8 in) as shown.
Periodically check the brake lever free
play and, if necessary, adjust it as fol-
lows.
To increase the brake lever free play,
turn the adjusting nut at the brake shoe
plate in direction (a). To decrease the
brake lever free play, turn the adjusting
nut in direction (b).
ZAUM00**
1
(b)
(a)
1. Adjusting nut
EWA10650
wIf proper adjustment cannot be ob-
tained as described, have a Yamaha
dealer make this adjustment.
EAU21960
Cast wheelsTo maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points regard-
ing the specified wheels.●
The wheel rims should be checked
for cracks, bends or warpage be-
fore each ride. If any damage is
found, have a Yamaha dealer re-
place the wheel. Do not attempt
even the smallest repair to the
wheel. A deformed or cracked
wheel must be replaced.
●
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
●
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
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6-16
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
ZAUM00**
1
(b)
(a)
1. Adjusting nut
EWA10650
wIf proper adjustment cannot be ob-
tained as described, have a Yamaha
dealer make this adjustment.
EAU22361
Checking the front and rear
brake shoesFrontZAUM00**
2
1
1. Wear indicator
2. Wear limit lineRearZAUM00**
1
2
1. Wear indicator
2. Wear limit line
Rear brake lever free play, adjusting
Brake shoes, checking
EAU22170
Adjusting the rear brake lever
free play
1
ZAUM00**1. Rear brake lever free playThe brake lever free play should mea-
sure 10 ~ 20 mm (0.4 ~ 0.8 in) as shown.
Periodically check the brake lever free
play and, if necessary, adjust it as fol-
lows.
To increase the brake lever free play,
turn the adjusting nut at the brake shoe
plate in direction (a). To decrease the
brake lever free play, turn the adjusting
nut in direction (b).
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6-17
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
Throttle grip and cable, checking and lubricating
Brake levers, lubricating
EAU23111
Checking and lubricating the
throttle grip and cableThe operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated at
the intervals specified in the periodic
maintenance chart.
EAU43630
Lubricating the front and rear
brake leversThe pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic main-
tenance and lubrication chart.Recommended lubricant:
Lithium-soap-based grease (all-pur-
pose grease)
The front and rear brake shoes must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart. Each brake is pro-
vided with a wear indicator, which al-
lows you to check the brake shoe wear
without having to disassemble the
brake. To check the brake shoe wear,
check the position of the wear indicator
while applying the brake. If a brake shoe
has worn to the point that the wear indi-
cator reaches the wear limit line, have
a Yamaha dealer replace the brake
shoes as a set.
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6-18
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIRCenterstand, checking and lubricating
Front fork, checking
EAU23271
Checking the front forkThe condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
EWA10750
wSecurely support the motorcycle so
that there is no danger of it falling
over.Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the motorcycle on a level sur-
face and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
ZAUM00**
ECA10590
cCIf any damage is found or the front
fork does not operate smoothly, have
a Yamaha dealer check or repair it.
EAU23191
Checking and lubricating the
centerstandThe operation of the centerstand should
be checked before each ride, and the
pivots and metal-to-metal contact sur-
faces should be lubricated if necessary.
EWA11300
wIf the centerstand does not move up
and down smoothly, have a Yamaha
dealer check or repair it.Recommended lubricant:
Lithium-soap-based grease (all-pur-
pose grease)
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
ZAUM00**
EAU23290
Checking the wheel bearingsThe 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. Steering, checking
Wheel bearings, checking
EAU23280
Checking the steeringWorn 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
char t.
1. Place a stand under the engine to
raise the front wheel off the ground.
EWA10750
wSecurely support the motorcycle so
that there is no danger of it falling
over.2. Hold the lower ends of the front fork
legs and try to move them forward
and backward. If any free play can
be felt, have a Yamaha dealer
check or repair the steering.
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6-20
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and always
shield your eyes when working
near batteries. In case of contact,
administer the following FIRST
AID.
EXTERNAL: Flush with
plenty of water.
INTERNAL: Drink large
quantities of water or milk
and immediately call a
physician.
EYES: Flush with water for
15 minutes and seek prompt
medical attention.
● ●● ●
●
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed space.
● ●● ●
●
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the vehicle is equipped with optional
electrical accessories.
To store the battery
1. If the vehicle will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
2. If the battery will be stored for more
than two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in-
stallation.
4. Before installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
ECAT1051
cC● ●● ●
●
Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
EAUT1853
BatteryZAUM00**
1
1. BatteryThis model is equipped with a sealed-
type (MF) battery, which does not re-
quire any maintenance. There is no
need to check the electrolyte or to add
distilled water.NOTE:
The battery is located behind panel C.
(See page 6-6.)
EWA10760
w● ●● ●
●
Electrolyte is poisonous and Battery
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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
EAUT2021
Replacing the fuseZAUM00**
1
1. FuseThe fuse holder is located beside the
battery. Remove panel C to access the
fuse. (See page 6-6.)
If the fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
all electrical circuits.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.Specified fuse:
15 A
Fuse, replacing
ECAT1061
cC● ●● ●
●
Do not use a fuse of a higher
amperage rating than recom-
mended to avoid causing exten-
sive damage to the electrical
system and possibly a fire.
● ●● ●
●
After removing and installing the
main fuse, be sure to turn the
main switch from “ON” to “OFF”
three times in 3 seconds inter-
vals to initialize the idle speed
control system.
3. Turn the key to “ON” and turn on
the electrical circuits to check if the
devices operate.
4. If the fuse immediately blows again,
have a Yamaha dealer check the
electrical system.
● ●● ●
●
To charge a sealed-type (MF)
battery, a special (constant-volt-
age) battery charger is required.
Using a conventional battery
charger will damage the battery.
If you do not have access to a
sealed-type (MF) battery
charger, have a Yamaha dealer
charge your battery.
● ●● ●
●
After installing the battery, be
sure to turn the main switch
from “ON” to “OFF” three times
in 3 seconds intervals to initial-
ize the idle speed control sys-
tem.
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