maintenance YAMAHA TMAX 2003 Owner's Manual
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Page 63 of 104
![YAMAHA TMAX 2003 Owners Manual 6-18
PERIODIC MAINTENANCE AND MINOR REPAIR
6 4. If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
1 YAMAHA TMAX 2003 Owners Manual 6-18
PERIODIC MAINTENANCE AND MINOR REPAIR
6 4. If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
1](/img/51/51569/w960_51569-62.png)
6-18
PERIODIC MAINTENANCE AND MINOR REPAIR
6 4. If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
1
1. Coolant reservoir cap
EW000067
w
Never attempt to remove the radia-
tor cap when the engine is hot.
5. Install the coolant reservoir cover
by installing the screw.
NOTE:
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radiator. If
the engine overheats, see page 6-38
for further instructions.
EC000080
cC
8
8
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
8 8
If water has been used instead
of coolant, replace it with
coolant as soon as possible,
otherwise the engine may not
be sufficiently cooled and the
cooling system will not be pro-
tected against frost and corro-
sion.
8 8
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be
reduced.
Coolant reservoir capacity
(up to the maximum level mark):
0.35 L
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Page 64 of 104
![YAMAHA TMAX 2003 Owners Manual 6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03877
Cleaning the air filter
element
Air filter element, cleaning
The air filter element should be
cleaned at the intervals specified in
the periodic YAMAHA TMAX 2003 Owners Manual 6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03877
Cleaning the air filter
element
Air filter element, cleaning
The air filter element should be
cleaned at the intervals specified in
the periodic](/img/51/51569/w960_51569-63.png)
6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03877
Cleaning the air filter
element
Air filter element, cleaning
The air filter element should be
cleaned at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean the air filter element
more frequently if you are riding in
unusually wet or dusty areas.
1. Remove cowling A. (See page
6-8 for cowling removal and
installation procedures.)3. Remove the air filter case cover
by removing the screws, and
then pull the air filter element
out.
1
22
1. Air filter case cover
2. Screw (×4)
2. Remove the windshield by
removing the screws.
11
1. Screw (×5)
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![YAMAHA TMAX 2003 Owners Manual 6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
6
1
1. Air filter element
EC000082
cC
8
8
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
8 8
The engine should never be
o YAMAHA TMAX 2003 Owners Manual 6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
6
1
1. Air filter element
EC000082
cC
8
8
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
8 8
The engine should never be
o](/img/51/51569/w960_51569-64.png)
6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
6
1
1. Air filter element
EC000082
cC
8
8
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
8 8
The engine should never be
operated without the air filter
element installed, otherwise
the pistons and/or cylinders
may become excessively
worn.
6. Install the air filter case cover by
installing the screws.
7. Install the windshield and the
cowling. 4. Lightly tap the air filter element to
remove most of the dust and dirt,
and then blow the remaining dirt
out with compressed air as
shown. If the air filter element is
damaged, replace it.
5. Insert the air filter element into
the air filter case.
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![YAMAHA TMAX 2003 Owners Manual 6-21
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00630
Adjusting the carburetorsCarburetors, adjusting
The carburetors are important parts
of the engine and require very
sophisticated adjustment. There YAMAHA TMAX 2003 Owners Manual 6-21
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00630
Adjusting the carburetorsCarburetors, adjusting
The carburetors are important parts
of the engine and require very
sophisticated adjustment. There](/img/51/51569/w960_51569-65.png)
6-21
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00630
Adjusting the carburetorsCarburetors, adjusting
The carburetors are important parts
of the engine and require very
sophisticated adjustment. Therefore,
most carburetor adjustments should
be left to a Yamaha dealer, who has
the necessary professional knowl-
edge and experience. The adjust-
ment described in the following sec-
tion, however, may be serviced by
the owner as part of routine mainte-
nance.
EC000095
cC
The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.
3. Check the engine idling speed
and, if necessary, adjust it to
specification by turning the throt-
tle stop screw. To increase the
engine idling speed, turn the
screw in direction a. To
decrease the engine idling
speed, turn the screw in direction
b.
1
ab
1. Throttle stop screw
EAU04758
Adjusting the engine idling
speed
Engine idling speed
The engine idling speed must be
checked and, if necessary, adjusted
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
The engine should be warm before
making this adjustment.
NOTE:
8The engine is warm when it
quickly responds to the throttle.
8A diagnostic tachometer is need-
ed to make this adjustment.
1. Remove panel B. (See page 6-7
for panel removal and installation
procedures.)
2. Attach the tachometer to the
spark plug lead.Engine idling speed:
1,150–1,200 r/min
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![YAMAHA TMAX 2003 Owners Manual 6-22
PERIODIC MAINTENANCE AND MINOR REPAIR
6
NOTE:
If the specified idling speed cannot
be obtained as described above,
have a Yamaha dealer make the
adjustment.
4. Install the panel.
EAU00637
Adjusti YAMAHA TMAX 2003 Owners Manual 6-22
PERIODIC MAINTENANCE AND MINOR REPAIR
6
NOTE:
If the specified idling speed cannot
be obtained as described above,
have a Yamaha dealer make the
adjustment.
4. Install the panel.
EAU00637
Adjusti](/img/51/51569/w960_51569-66.png)
6-22
PERIODIC MAINTENANCE AND MINOR REPAIR
6
NOTE:
If the specified idling speed cannot
be obtained as described above,
have a Yamaha dealer make the
adjustment.
4. Install the panel.
EAU00637
Adjusting the valve
clearance
Valve clearance, adjusting
The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clear-
ance must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU00635
Adjusting the throttle cable
free play
Throttle cable free play, adjusting
The throttle cable free play should
measure 3–5 mm at the throttle grip.
Periodically check the throttle cable
free play and, if necessary, have a
Yamaha dealer adjust it.
a
a. Throttle cable free play
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Page 68 of 104
![YAMAHA TMAX 2003 Owners Manual 6-23
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04403
TiresTires
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified tires. YAMAHA TMAX 2003 Owners Manual 6-23
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04403
TiresTires
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified tires.](/img/51/51569/w960_51569-67.png)
6-23
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04403
TiresTires
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EW000082
w
8 8
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the tempera-
ture of the tires equals the
ambient temperature).
8 8
The tire air pressure must be
adjusted in accordance with
the riding speed and with the
total weight of rider, passen-
ger, cargo, and accessories
approved for this model.
sories does not exceed the
specified maximum load for
the vehicle.
8 8
Do not carry along loosely
packed items, which can shift
during a ride.
8 8
Securely pack the heaviest
items close to the center of the
scooter and distribute the
weight evenly on both sides.
8 8
Adjust the tire air pressure
with regard to the load.
8 8
Check the tire condition and
air pressure before each ride.
EWA00040
w
Because loading has an enormous
impact on the handling, braking,
performance and safety character-
istics of your scooter, you should
keep the following precautions in
mind.
8 8
NEVER OVERLOAD THE
SCOOTER! Operation of an
overloaded scooter may result
in tire damage, loss of control,
or severe injury. Make sure
that the total weight of rider,
passenger, cargo, and acces-
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg
200 kPa
(2.00 kgf/cm2,
2.00 bar)225 kPa
(2.25 kgf/cm2,
2.25 bar)
90 kg–maximum225 kPa
(2.25 kgf/cm2,
2.25 bar)250 kPa
(2.50 kgf/cm2,
2.50 bar)
Maximum load* 183 kg
* Total weight of rider, passenger, cargo and
accessories
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![YAMAHA TMAX 2003 Owners Manual 6-24
PERIODIC MAINTENANCE AND MINOR REPAIR
6 Tire inspection
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragment YAMAHA TMAX 2003 Owners Manual 6-24
PERIODIC MAINTENANCE AND MINOR REPAIR
6 Tire inspection
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragment](/img/51/51569/w960_51569-68.png)
6-24
PERIODIC MAINTENANCE AND MINOR REPAIR
6 Tire inspection
The 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 replace the tire imme-
diately.
NOTE:
The tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
1a
1. Tire sidewall
a. Tire tread depth
EAU00683
w
8 8
Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the scooter with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8 8
The replacement of all wheel
and brake related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
Tire information
This scooter is equipped with cast
wheels and tubeless tires.
EW000078
w
8 8
The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the scooter
cannot be guaranteed.
8 8
After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
Minimum tire tread depth
(front and rear)1.6 mm
FRONT
Manufacturer Size Model
DUNLOP 120/70-14M/C 55S D305FA
BRIDGESTONE120/70-14M/C 55S HOOP B03
REAR
Manufacturer Size Model
DUNLOP 150/70-14M/C 66S D305
BRIDGESTONE150/70-14M/C 66S HOOP B02
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![YAMAHA TMAX 2003 Owners Manual 6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03773
Cast wheelsWheels
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified YAMAHA TMAX 2003 Owners Manual 6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03773
Cast wheelsWheels
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified](/img/51/51569/w960_51569-69.png)
6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03773
Cast wheelsWheels
To maximize the performance, dura-
bility, and safe operation of your
scooter, note the following points
regarding the specified wheels.
8The wheel rims should be
checked for cracks, bends or
warpage before each ride. If any
damage is found, have a
Yamaha dealer replace the
wheel. Do not attempt even the
smallest repair to the wheel. A
deformed or cracked wheel must
be replaced.
8The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced.
An unbalanced wheel can result
in poor performance, adverse
handling characteristics, and a
shortened tire life.
EAU03851
Front and rear brake levers
There should be no free play at the
brake lever ends. If there is free play,
have a Yamaha dealer inspect the
brake system.
8Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for
it to develop its optimal charac-
teristics.FRONT
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![YAMAHA TMAX 2003 Owners Manual 6-26
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03938
Front brake pads
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear
without having to disas YAMAHA TMAX 2003 Owners Manual 6-26
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03938
Front brake pads
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear
without having to disas](/img/51/51569/w960_51569-70.png)
6-26
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03938
Front brake pads
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear
without having to disassemble the
brake. To check the brake pad wear,
check the wear indicator grooves. If a
brake pad has worn to the point that
the wear indicator grooves have
almost disappeared, have a Yamaha
dealer replace the brake pads as a
set.
1 11 1
1. Brake pad wear indicator groove (×3)
EAU00721
Checking the front and rear
brake pads
Front and rear brake pads, checking
The front and rear brake pads must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart.
REARFRONT
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![YAMAHA TMAX 2003 Owners Manual 6-27
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU01248
Rear brake pads
1. Remove the rear brake caliper
by removing the bolts.
2. Check each rear brake pad for
damage and measure the lining
thickness. YAMAHA TMAX 2003 Owners Manual 6-27
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU01248
Rear brake pads
1. Remove the rear brake caliper
by removing the bolts.
2. Check each rear brake pad for
damage and measure the lining
thickness.](/img/51/51569/w960_51569-71.png)
6-27
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU01248
Rear brake pads
1. Remove the rear brake caliper
by removing the bolts.
2. Check each rear brake pad for
damage and measure the lining
thickness. If a brake pad is dam-
aged or if the lining thickness is
less than 0.8 mm, have a
Yamaha dealer replace the
brake pads as a set.
3. Install the rear brake caliper by
installing the bolts, then tighten-
ing them to the specified torque.
a1
1. Bolt (×2)
a. Brake pad wear limit
EAU04856
Checking the brake fluid
level
Brake fluid level, checking
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low
brake fluid level may indicate worn
brake pads and/or brake system
leakage. If the brake fluid level is low,
be sure to check the brake pads for
wear and the brake system for leak-
age.
1
1. Minimum level mark
REARFRONTTightening torque:
Brake caliper bolt:
40 Nm (4.0 m·kgf)
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