2004 YAMAHA TDM 900 Owners Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
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WARNING

EWA10790
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooled
down.
3. Place a new bulb into position, and
then secure it with the bulb holder.
CAUTION:

ECA10650
Take care not to damage the follow-
ing parts:

Headlight bulb
Do not touch the glass part of the
headlight bulb to keep it free fromoil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with al-
cohol or thinner.

Headlight lens

Do not affix any type of tinted
film or stickers to the head-
light lens.

Do not use a headlight bulb of
a wattage higher than speci-
fied.
4. Install the bulb cover, and then
connect the coupler.5. Have a Yamaha dealer adjust the
headlight beam if necessary.
1. Headlight bulb holder
1

1. Do not touch the glass part of the bulb.
1

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EAU24080
Replacing the tail/brake light
bulb
1. Remove the seat. (See
page 3-13.)
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.
EAU24201
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.
1. Socket
1

1. Screw
2. Turn signal light lens
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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.
EAU24350
Supporting the motorcycle
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of theframe in front of the rear wheel or under
each side of the swingarm.

1. Turn signal light bulb
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EAU24360
Front wheel
EAU24550
To remove the front wheel
WARNING

EWA10820

It is advisable to have a Yamaha
dealer service the wheel.

Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Loosen the front wheel axle pinch
bolt, then the brake caliper bolts.
2. Loosen the wheel axle with a
19-mm hexagon wrench.
3. Lift the front wheel off the groundaccording to the procedure on
page 6-34.
4. Remove the brake hose holders
by removing the bolts.
5. Remove the brake calipers by re-
moving the bolts.
6. Pull the wheel axle out, and then
remove the wheel.
CAUTION:

ECA11050
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will be
forced shut.
EAU25020
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle.
3. Lower the front wheel so that it is
on the ground.
4. Install the brake calipers by install-
ing the bolts.
NOTE:

Make sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs.
5. Install the brake hose holders by
installing the bolts.
6. Tighten the wheel axle, the wheel
axle pinch bolt and the brake cali-
per bolts to the specified torques.
1. Wheel axle
2. Front wheel axle pinch bolt
1
2

1. Brake hose holder
2. Bolt
3. Brake caliper
13
2

Tightening torques:
Wheel axle:
72 Nm (7.2 m·kgf, 52 ft·lbf)
Front wheel axle pinch bolt:
20 Nm (2.0 m·kgf, 14.5 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)

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7. Push down hard on the handlebar
several times to check for proper
fork operation.

EAU25080
Rear wheel
EAU25330
To remove the rear wheel
WARNING

EWA10820

It is advisable to have a Yamaha
dealer service the wheel.

Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Remove the drive chain cover by
removing the quick fasteners and
the bolts.
2. Loosen the axle nut and the brake
caliper bracket bolt.
1. Bolt
2. Quick fastener
12

1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Alignment marks
1. Brake caliper bracket bolt
2. Brake caliper bracket
(a)
(b)3
(a)1
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2
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3. Lift the rear wheel off the ground
according to the procedure on
page 6-34.
4. Remove the axle nut.
5. Loosen the locknut on each side of
the swingarm.
6. Turn the drive chain slack adjust-
ing bolts fully in direction (a).
7. Push the wheel forward, tighten
the caliper bracket bolt, and then
remove the drive chain from the
rear sprocket.
NOTE:

The drive chain does not need to be
disassembled in order to remove and
install the rear wheel.
8. Pull the wheel axle out, and thenremove the wheel.
CAUTION:

ECA11510
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake caliper pistons will be forced
out.
EAU25681
To install the rear wheel
1. Install the wheel by inserting the
wheel axle from the right hand
side.
NOTE:

Make sure that there is enough space
between the brake pads before install-
ing the wheel.
2. Install the drive chain onto the rear
sprocket.
3. Loosen the brake caliper bracket
bolt.
4. Adjust the drive chain slack. (See
page 6-24.)
5. Install the axle nut, and then lower
the rear wheel so that it is on the
ground.6. Tighten the axle nut and the brake
caliper bracket bolt to the specified
torques.
7. Install the drive chain cover by in-
stalling the bolts and quick fasten-
ers.
NOTE:

To install a quick fastener, push the pin
Tightening torques:
Axle nut:
150 Nm (15.0 m·kgf,
108.5 ft·lbf)
Brake caliper bracket bolt:
40 Nm (4.0 m·kgf, 29.0 ft·lbf)
1. Quick fastener (after removal)
2. Quick fastener (before installation)
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back so that it will protrude from the fas-
tener head, and then insert the fastener
and push the protruding pin in until it is

flush with the fastener head.
EAU25870
Troubleshooting
Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing 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 inferi-
or, have a shorter service life and can
lead to expensive repair bills.

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EAU25911
Troubleshooting charts
Starting problems or poor engine
performance
WARNING

EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.