2006 YAMAHA TDM 900 engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
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9against frost and corrosion.


If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
WARNING

EWA10380
Never attempt to remove the radiator
cap when the engine is hot.
NOTE:


The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.

If the engine overheats, see page
6-35 for further instructions.
EAU27053
Replacing the air filter element
The air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas.
1. Remove the seat. (See
page 3-14.)
2. Remove cowlings A and B as well
as panels A and B. (See
page 6-5.)
3. Remove the fuel tank bolts.
NOTE:

For TDM900, skip steps 4 and 11.4. Remove the rear brake fluid reser-
voir holder by removing the bolt.
For TDM900A
5. Lift the fuel tank away from the air
filter case. (Do not disconnect the
fuel hoses!)
6. Remove the air filter case cover by
removing the screws.
1. Bolt
1(×2)

1. Rear brake fluid reservoir holder
2. Rear brake fluid reservoir
3. Bolt
12
3

PERIODIC MAINTENANCE AND MINOR REPAIR
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7. Pull the air filter element out.
8. Insert a new air filter element into
the air filter case.
CAUTION:

ECA10480

Make sure that the air filter ele-
ment is properly seated in the
air filter case.

The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
9. Install the air filter case cover by in-
stalling the screws.
10. Place the fuel tank in the original
position and install the bolts.
WARNING

EWA11330

Before 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.

Make sure that the fuel hoses
are properly connected and
routed, and not pinched.

Be sure to place the fuel tank
breather hose and the fuel tankoverflow hose in the original po-
sition.
11. Install the rear brake fluid reservoir
holder by installing the bolt.
1. Air filter case cover
2. Screw
1. Air filter element
1 2
2 21

1. Fuel tank breather/overflow hose
2. Fuel hose
1. Original position (paint mark)
12
1

PERIODIC MAINTENANCE AND MINOR REPAIR
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12. Install the panels and cowlings.
13. Install the seat.

EAU34300
Adjusting the 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 lubrication
chart.
The engine should be warm before
making this adjustment.
NOTE:

The engine is warm when it quickly re-
sponds to the throttle.
Check the engine idling speed and, if
necessary, adjust it to specification by
turning the idle adjusting screw. To in-
crease 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. Idle adjusting screw
Engine idling speed:
1100–1200 r/min
1(a)
(b)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
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EAU21381
Checking the throttle cable
free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21401
Valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU33041
Tires
To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, 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.
WARNING

EWA10500

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).

The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
1. Throttle cable free play
1

PERIODIC MAINTENANCE AND MINOR REPAIR
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2. To tighten the drive chain, turn the
adjusting bolt on each side of theswingarm in direction (a). To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction (b), and then
push the rear wheel forward.
NOTE:

Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-
tion for proper wheel alignment.
CAUTION:

ECA10570
Improper drive chain slack will over-
load the engine as well as other vital
parts of the motorcycle and can lead
to chain slippage or breakage. To
prevent this from occurring, keep
the drive chain slack within the
specified limits.
3. Tighten the locknuts, and then
tighten the axle nut and the brake
caliper bracket bolt to the specified
torques.
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Alignment marks
1. Brake caliper bracket bolt
2. Brake caliper bracket
3
4 1
2 (b)
(a)
1
2

Tightening torque:
Axle nut:
150 Nm (15.0 m·kgf, 108.5 ft·lbf)
Brake caliper bracket bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU23022
Cleaning and lubricating the
drive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
CAUTION:

ECA10581
The drive chain must be lubricated
after washing the motorcycle and
riding in the rain.
1. Clean the drive chain with kero-
sene and a small soft brush.
CAUTION:

ECA11120
To prevent damaging the O-rings, do
not clean the drive chain with steam
cleaners, high-pressure washers or
inappropriate solvents.
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
CAUTION:

ECA11110
Do not use engine oil or any other lu-
bricants for the drive chain, as they
may contain substances that could
damage the O-rings.
EAU23100
Checking and lubricating the
cables
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING

EWA10720
Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafe
conditions.
Recommended lubricant:
Engine oil

PERIODIC MAINTENANCE AND MINOR REPAIR
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CAUTION:

ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU23280
Checking the steering
Worn 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 pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING

EWA10750
Securely support the vehicle 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 for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU38900
Replacing the auxiliary light
bulb
1. Remove the auxiliary light lens by
removing the screws.
2. Remove the defective bulb by pull-
ing it out.3. Insert a new bulb into the socket.
4. Install the lens by installing the
screws.
CAUTION:

ECA10680
Do not overtighten the screws, oth-
erwise 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 the

1. Auxiliary light lens
2. Screw
21

1. Auxiliary light bulb
1