INSTRUMENT AND CONTROL FUNCTIONS
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EAU11911
Tachometer unit
The electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
When the key is turned to “ON”, the ta-
chometer needle will sweep once
across the r/min range and then return
to zero r/min in order to test the electri-
cal circuit.
CAUTION:
ECA10031
Do not operate the engine in the ta-
chometer red zone.
Red zone: 8000 r/min and above
This tachometer unit is equipped with a
clock.
To set the clock:
1. Push both the “SELECT” and “RE-
SET” buttons for at least two sec-
onds.
2. When the hour digits start flashing,
push the “RESET” button to set the
hours.
3. Push the “SELECT” button to
change the minutes.
4. When the minute digits start flash-
ing, push the “RESET” button to
set the minutes.
5. Push the “SELECT” button to start
the clock.
NOTE:
After setting the clock, be sure to
push the “SELECT” button before
turning the key to “OFF”, otherwise
the clock will not be set.
When the key is turned to “OFF”,
the clock display will remain on for
48 hours and then go off to prevent
the battery from discharging.
EAU12181
Coolant temperature gauge
With the key in the “ON” position, the
coolant temperature gauge indicates
the temperature of the coolant. When
the key is turned to “ON”, the coolant
temperature gauge needle will sweep
once across the temperature range and
then return to “C” in order to test the
electrical circuit. The coolant tempera-
ture varies with changes in the weather
and engine load. If the needle reaches
or enters the red zone, stop the vehicle
and let the engine cool. (See
page 6-35.)
1. Tachometer
2. Tachometer red zone
3. Clock
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1. Coolant temperature gauge
2. Coolant temperature gauge red zone
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INSTRUMENT AND CONTROL FUNCTIONS
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EAU26792
ABS (for ABS models)
The Yamaha ABS (Anti-lock Brake
System) features a dual electronic con-
trol system, which acts on the front and
rear brakes independently. The ABS is
monitored by an ECU (Electronic Con-
trol Unit), which will have recourse to
manual braking if a malfunction occurs.
WARNING
EWA10090
The ABS performs best on long
braking distances.
On certain (rough or gravel)
roads, the braking distance may
be longer with than without the
ABS. Therefore, always keep a
sufficient distance to the vehi-
cle ahead to match the riding
speed.
NOTE:
When the ABS is activated, the
brakes are operated in the usual
way. A pulsating action may be felt
at the brake lever or brake pedal,
but this does not indicate a mal-
function.
This ABS has a test mode whichallows the owner to experience the
pulsating at the brake lever or
brake pedal when the ABS is oper-
ating. However, special tools are
required, so please consult your
Yamaha dealer when performing
this test.
EAU13090
Fuel tank cap
To open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key into the lock, and then turn
it 1/8 turn clockwise. The lock will be re-
leased and the fuel tank cap can be
opened.
To close the fuel tank cap
1. Push the fuel tank cap into position
with the key inserted in the lock.
2. Turn the key counterclockwise to
the original position, remove it, and
then close the lock cover.
1. Fuel tank cap lock cover
2. Unlock.
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INSTRUMENT AND CONTROL FUNCTIONS
3-14
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EAU13410
Fuel tank breather hose
Before operating the motorcycle:
Check the fuel tank breather hose
connection.
Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.
Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.
EAU13441
Catalytic converter
This vehicle is equipped with catalytic
converters in the exhaust system.
WARNING
EWA10860
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-
ing any maintenance work.
CAUTION:
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.
Do not allow the engine to idle
too long.
EAU13860
Seat
To remove the seat
Insert the key into the seat lock, turn it
counterclockwise, and then pull the
seat off.
To install the seat
Insert the projections on the front of the
seat into the seat holder, push the rear
of the seat down to lock it in place, and
then remove the key.
1. Fuel tank breather hose
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1. Seat lock
2. Unlock.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
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9 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. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
CAUTION:
ECA10630
Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
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 charg-
er, have a Yamaha dealer
charge your battery.
EAU38591
Replacing the fuses
For TDM900
1. Backup fuse (for odometer and clock)
2. Radiator fan fuse
3. Turn signal light and hazard fuse
4. Ignition fuse
5. Signaling system fuse
6. Headlight fuse
7. Spare fuse
8. Fuel injection system fuse
9. Main fuse
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
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9For TDM900A
The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located under the seat. (See
page 3-14.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn offthe electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended toavoid causing extensive damage to
the electrical system and possibly a
fire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. Backup fuse (for odometer and clock)
2. Radiator fan fuse
3. Turn signal light and hazard fuse
4. Ignition fuse
5. Signaling system fuse
6. Headlight fuse
7. ABS motor fuse (for ABS models)
8. ABS motor spare fuse (for ABS models)
9. Main fuse
10. Spare fuse
11. Fuel injection system fuse
12. ABS control unit fuse (for ABS models)
12 34 5 6 7 8 911 12
10
Specified fuses:
Main fuse:
40.0 A
Headlight fuse:
TDM900 15.0 A
TDM900A 20.0 A
Radiator fan fuse:
20.0 A
Ignition fuse:
10.0 A
Signaling system fuse:
10.0 A
Backup fuse:
TDM900 5.0 A
TDM900A 10.0 A
Fuel injection system fuse:
10.0 A
Turn signal light and hazard fuse:
10.0 A
ABS motor fuse:
TDM900A 30.0 A
ABS control unit fuse:
TDM900A 10.0 A
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU24080
Replacing the tail/brake light
bulb
1. Remove the seat. (See
page 3-14.)
2. Remove the socket (together with
the bulb) by turning it counter-
clockwise.
3. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Install the socket (together with the
bulb) by turning it clockwise.
6. Install the seat.
EAU24202
Replacing a turn signal light
bulb
1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
CAUTION:
ECA11190
Do not overtighten the screw, other-
wise the lens may break.
1. Socket
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1. Screw
2. Turn signal light lens
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1. Turn signal light bulb
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
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9Engine overheating
WARNING
EWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissing
sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:
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.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.