YAMAHA TDM 900 2003 Repair Manual

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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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8If 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.
8If 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.
8If 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.
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8Before installing the fuel tank,
make sure that the fuel hoses
are not damaged. If any fuel
hose is damaged, do not start
the engine but have a Yamaha
dealer replace the hose, other-
wise fuel may leak.
8Make sure that the fuel hoses
are properly connected and
routed, and not pinched.
8Be sure to place the fuel tank
breather hose in the original
position.
19. Install the panel, the cowling,
and the seat.
20. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a
Yamaha dealer check the cool-
ing system. 15. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
16. Remove the radiator cap to
check the coolant level in the
radiator. If necessary, add suffi-
cient coolant until it reaches the
top of the radiator, and then
install the radiator cap and the
cap retaining bolt.
17. Check the coolant level in the
reservoir. If necessary, remove
the coolant reservoir cap, add
coolant to the maximum level
mark, and then install the cap.
18. Install the fuel tank.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Replacing the air filter
element
Air filter element, replacingThe air filter element should be
replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Replace the air filter ele-
ment more frequently if you are riding
in unusually wet or dusty areas.
1. Remove the seat. (See page
3-13 for seat removal and instal-
lation procedures.)
2. Remove cowlings A and B as
well as panels A and B. (See
pages 6-5 and 6-6 for cowling
and panel removal and installa-
tion procedures.)
1. Bolt (×2)
6. Insert a new air filter element into
the air filter case.
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8Make sure that the air filter ele-
ment is properly seated in the
air filter case.
8The engine should never be
operated without the air filter
element installed, otherwise
the pistons and/or cylinders
may become excessively
worn.
1. Air filter element
3. Remove the fuel tank bolts, and
then lift the fuel tank away from
the air filter case.
4. Remove the air filter case cover
by removing the screws.
5. Pull the air filter element out.
1. Air filter case cover
2. Screw (×8)
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PERIODIC MAINTENANCE AND MINOR REPAIR
67. Install the air filter case cover by
installing the screws.
8. Place the fuel tank in the original
position and install the bolts.
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8Before installing the fuel tank,
make sure that the fuel hoses
are not damaged. If any fuel
hose is damaged, do not start
the engine but have a Yamaha
dealer replace the hose, other-
wise fuel may leak.
8Make sure that the fuel hoses
are properly connected and
routed, and not pinched.
8Be sure to place the fuel tank
breather hose and the fuel
tank overflow hose in the orig-
inal position.
9. Install the panels and cowlings.
10. Install the seat.Check the engine idling speed and, if
necessary, adjust it to specification
by turning the throttle 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.
NOTE:
If the specified idling speed cannot
be obtained as described above,
have a Yamaha dealer make the
adjustment.
1. Throttle stop screw
EAU04578
Adjusting the engine idling
speed
Engine idling speedThe 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:
The engine is warm when it quickly
responds to the throttle.
Engine idling speed:
1,100–1,200 r/min
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Adjusting the throttle cable
free play
Throttle cable free play, adjustingThe 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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TiresTiresTo maximize the performance, dura-
bility, and safe operation of your
motorcycle, 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.
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8The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the tempera-
ture of the tires equals the
ambient temperature).
8The 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.
EAU00637
Adjusting the valve
clearance
Valve clearance, adjustingThe 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.
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PERIODIC MAINTENANCE AND MINOR REPAIR
68Adjust the suspension and tire
air pressure with regard to the
load.
8Check the tire condition and
air pressure before each ride.
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Because loading has an enormous
impact on the handling, braking,
performance and safety character-
istics of your motorcycle, you
should keep the following precau-
tions in mind.
8NEVER OVERLOAD THE
MOTORCYCLE! Operation of
an overloaded motorcycle may
result in tire damage, loss of
control, or severe injury. Make
sure that the total weight of
rider, passenger, cargo, and
accessories does not exceed
the specified maximum load
for the vehicle.
8Do not carry along loosely
packed items, which can shift
during a ride.
8Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg
225 kPa
(2.25 kgf/cm2,
2.25 bar)250 kPa
(2.50 kgf/cm2,
2.50 bar)
90 kg–maximum225 kPa
(2.25 kgf/cm2,
2.25 bar)290 kPa
(2.90 kgf/cm2,
2.90 bar)
High-speed riding225 kPa
(2.25 kgf/cm2,
2.25 bar)250 kPa
(2.50 kgf/cm2,
2.50 bar)
Maximum load* 203 kg
* Total weight of rider, passenger, cargo and
accessories
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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.
1. Tire sidewall
a. Tire tread depth
Tire information
This motorcycle is equipped with cast
wheels and tubeless tires with valves.
1. Tire air valve
2. Valve core
3. Valve cap with seal
NOTE:
The tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
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8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The 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.
Minimum tire tread depth
(front and rear)1.6 mm
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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8The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the motorcy-
cle cannot be guaranteed.
8After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
8Always make sure that the
valve caps are securely
installed to prevent air pres-
sure leakage.
8Use only the tire valves and
valve cores listed below to
avoid tire deflation during a
high-speed ride.
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This motorcycle is fitted with
super-high-speed tires. Note the
following points in order to make
the most efficient use of these
tires.
8Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at
super high speeds.
8Brand-new tires can have a
relatively poor grip on certain
road surfaces until they have
been “broken in”. Therefore, it
is advisable before doing any
high-speed riding to ride con-
servatively for approximately
100 km after installing a new
tire.
8The tires must be warmed up
before a high-speed run.
8Always adjust the tire air pres-
sure according to the operat-
ing conditions.
FRONT
Manufacturer Size Model
Dunlop
120/70 ZR18 M/C (59W)D220FSTJ
Metzeler
120/70 ZR18 M/C (59W)MEZ4 FRONT
REAR
Manufacturer Size Model
Dunlop
160/60 ZR17 M/C (69W)D220STJ
Metzeler
160/60 ZR17 M/C (69W)MEZ4
FRONT & REAR
Tire air valve TR412
Valve core #9000A (original)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Cast wheelsWheelsTo maximize the performance, dura-
bility, and safe operation of your
motorcycle, 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.
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Adjusting the clutch lever
free play
Clutch lever free play, adjustingThe clutch lever free play should
measure 10–15 mm as shown.
Periodically check the clutch lever
free play and, if necessary, adjust it
as follows.
1. Loosen the locknut at the clutch
lever.
2. To increase the clutch lever free
play, turn the adjusting bolt in
direction a. To decrease the
clutch lever free play, turn the
adjusting bolt in direction b.
1
a2
a c
b
1. Locknut (clutch lever)
2. Clutch lever free play adjusting bolt
c. Clutch lever free play
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.
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PERIODIC MAINTENANCE AND MINOR REPAIR
63. If the specified clutch lever free
play could be obtained as
described above, tighten the
locknut and skip the rest of the
procedure, otherwise proceed as
follows.
4. Fully turn the adjusting bolt at the
clutch lever in direction ato
loosen the clutch cable.
1
a2
a
1. Locknut (clutch lever)
2. Clutch lever free play adjusting bolt
EAU00712
Adjusting the brake pedal
position
Brake pedal position, adjustingThe top of the brake pedal should be
positioned approximately 32 mm
below the top of the footrest as
shown. Periodically check the brake
pedal position and, if necessary,
have a Yamaha dealer adjust it.
a. Distance between brake pedal and footrest
5. Loosen the locknut at the
crankcase.
6. To increase the clutch lever free
play, turn the adjusting nut in
direction a. To decrease the
clutch lever free play, turn the
adjusting nut in direction b.
7. Tighten the locknut at the clutch
lever and the crankcase.
12
b
a
1. Locknut (crankcase)
2. Clutch lever free play adjusting nut
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A soft or spongy feeling in the
brake pedal can indicate the pres-
ence of air in the hydraulic system.
If there is air in the hydraulic sys-
tem, have a Yamaha dealer bleed
the system before operating the
motorcycle. Air in the hydraulic
system will diminish the braking
performance, which may result in
loss of control and an accident.
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Checking the front and rear
brake pads
Front and rear brake pads, checkingThe front and rear brake pads must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU00713
Adjusting the rear brake light
switch
Rear brake light switch, adjustingThe rear brake light switch, which is
activated by the brake pedal, is prop-
erly adjusted when the brake light
comes on just before braking takes
effect. If necessary, adjust the brake
light switch as follows.
Turn the adjusting nut while holding
the rear brake light switch in place.
To make the brake light come on ear-
lier, turn the adjusting nut in direction
a. To make the brake light come on
later, turn the adjusting nut in direc-
tion b.
1. Brake light switch
2. Brake light switch adjusting nut
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