2005 YAMAHA TDM 900 check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
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2
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9
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 tank
overflow hose in the original po-
sition.
10. Install the rear brake fluid reservoir
holder by installing the bolt.
11. Install the panels and cowlings.
12. 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).
1. Fuel tank breather/overflow hose
2. Fuel hose
12

1. Original position (white mark)
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
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67
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9
NOTE:

If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
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.
1. Idle adjusting screw
Engine idling speed:
1100–1200 r/min
1(a)
(b)

1. Throttle cable free play
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
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2
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9

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
6-26
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67
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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
6-32
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9
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
frame in front of the rear wheel or under
each side of the swingarm.

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.
1. Auxiliary light bulb
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
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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.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
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9 Engine 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.

INDEX
A
ABS (for ABS models) .............................3-11
ABS warning light (for ABS models) ..........3-4
Air filter element, replacing ......................6-12
Anti-theft alarm (optional) ..........................3-8
Auxiliary light bulb, replacing ...................6-31
B
Battery .....................................................6-27
Brake and clutch levers, checking and
lubricating ..............................................6-24
Brake and shift pedals, checking and
lubricating ..............................................6-24
Brake fluid, changing ...............................6-21
Brake fluid level, checking .......................6-20
Brake lever ..............................................3-10
Brake pedal .............................................3-11
C
Cables, checking and lubricating .............6-23
Care ...........................................................7-1
Catalytic converter ...................................3-14
Clutch lever ..............................................3-10
Clutch lever free play, adjusting ..............6-18
Coolant ....................................................6-10
Coolant temperature gauge .......................3-6
Cowlings and panels, removing and
installing ..................................................6-5
D
Dimmer switch ...........................................3-9
Drive chain, cleaning and lubricating .......6-23
Drive chain slack .....................................6-21
E
Engine break-in .........................................5-3
Engine idling speed .................................6-13
Engine oil and oil filter element ..................6-7Engine stop switch .................................... 3-9
Engine trouble warning light ...................... 3-4
F
Front and rear brake pads, checking....... 6-19
Front fork, adjusting................................. 3-15
Front fork, checking ................................. 6-25
Fuel ......................................................... 3-13
Fuel consumption, tips for reducing .......... 5-3
Fuel level warning indicator ....................... 3-4
Fuel tank breather hose .......................... 3-13
Fuel tank cap ........................................... 3-12
Fuses, replacing ...................................... 6-28
H
Handlebar switches ................................... 3-8
Hazard switch ............................................ 3-9
Headlight bulb, replacing ......................... 6-29
High beam indicator light ........................... 3-4
Horn switch................................................ 3-9
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-19
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
K
Key identification number .......................... 9-1
L
Luggage strap holders............................. 3-18
M
Main switch/steering lock .......................... 3-2
Model label ................................................ 9-2
Multi-function display ................................. 3-7
N
Neutral indicator light................................. 3-4
O
Oil level warning light ................................ 3-4
P
Parking ...................................................... 5-4
Part locations ............................................ 2-1
Pass switch ............................................... 3-9
Periodic maintenance and lubrication
chart ........................................................ 6-2
Pre-operation check list............................. 4-2
R
Rear brake light switch, adjusting ........... 6-19
Rear suspension, lubricating ................... 6-25
S
Safety information ..................................... 1-1
Seat ......................................................... 3-14
Shifting ...................................................... 5-2
Shift pedal ............................................... 3-10
Shock absorber assembly, adjusting ...... 3-17
Sidestand ................................................ 3-19
Sidestand, checking and lubricating........ 6-25
Spark plugs, checking ............................... 6-6
Specifications ............................................ 8-1
Starting the engine .................................... 5-1
Start switch................................................ 3-9
Steering, checking................................... 6-26
Storage...................................................... 7-3
Storage compartment.............................. 3-15
Supporting the motorcycle ...................... 6-32
T
Tachometer unit ........................................ 3-5
Tail/brake light bulb, replacing ................ 6-30
Throttle cable free play, checking ........... 6-14
Throttle grip and cable, checking and
lubricating ............................................. 6-24