2002 YAMAHA TDM 900 check engine light

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU04238
Engine trouble warning light “”
This warning light comes on or flashes
when an electrical circuit monitoring
the engine is defective. When this oc-
curs, have a Yamaha dealer check the
self-diagnosis system.NOTE:_ This warning light comes on for a few
seconds when the key is turned to
“ON”, but this does not indicate a mal-
function. _
EAU04301
Oil level warning light “”
This warning light comes on when the
engine oil level is low.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Turn the key to “ON”.
2. If the warning light does not come
on for a few seconds, then go off,
have a Yamaha dealer check the
electrical circuit.
NOTE:_ Even if the oil level is sufficient, the
warning light may flicker when riding on
a slope or during sudden acceleration
or deceleration, but this is not a mal-
function. _
EAU04428*
Speedometer unit The speedometer unit is equipped with
the following:

a digital speedometer (which
shows riding speed)


an odometer (which shows the to-
tal distance traveled)


two tripmeters (which show the
distance traveled since they were
last set to zero)


a fuel reserve tripmeter (which
shows the distance traveled on the
fuel reserve)
1. Speedometer
2. Odometer/tripmeter
3.“SELECT” button
4.“RESET” button
5. Fuel gauge
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5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@

Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
@
EAU03951
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:

The transmission is in the neutral
position.


The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
_

Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-19.


Never ride with the sidestand
down.
_1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
ECA00083
CAUTION:_ The oil level warning light and en-
gine trouble warning light should
come on for a few seconds, then go
off. If a warning light does not go off,
see pages 3-2 and 3-3 for the corre-
sponding warning light circuit
check. _2. Shift the transmission into the neu-
tral position.NOTE:_ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. _3. Start the engine by pushing the
start switch.
U5PSE0.book Page 1 Thursday, December 13, 2001 4:29 PM

OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU03952
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Thoroughly warm up the engine.


Shift up swiftly, and avoid high en-
gine speeds during acceleration.


Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the engine.


Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU01128
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1,600 km. For this rea-
son, you should read the following ma-
terial carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1,600 km. The various parts in the en-
gine wear and polish themselves to the
correct operating clearances. During
this period, prolonged full-throttle oper-
ation or any condition that might result
in engine overheating must be avoided.
EAU04315
0–1,000 km
Avoid prolonged operation above
4,000 r/min.
1,000–1,600 km
Avoid prolonged operation above
6,000 r/min.
ECA00058
CAUTION:_ After 1,000 km of operation, the en-
gine oil must be changed, and the
oil filter element replaced. _1,600 km and beyond
The vehicle can now be operated nor-
mally.
EC000053
CAUTION:_

Keep the engine speed out of
the tachometer red zone.


If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
_
U5PSE0.book Page 4 Thursday, December 13, 2001 4:29 PM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing cowlings and panels ..... 6-5
Checking the spark plugs .................................... 6-7
Engine oil and oil filter element ............................ 6-9
Coolant .............................................................. 6-12
Cleaning the air filter element ............................ 6-16
Adjusting the engine idling speed ...................... 6-17
Adjusting the throttle cable free play .................. 6-18
Adjusting the valve clearance ............................ 6-18
Tires ................................................................... 6-19
Adjusting the clutch lever free play .................... 6-22
Adjusting the brake pedal position ..................... 6-23
Adjusting the rear brake light switch .................. 6-23
Checking the front and rear brake pads ............. 6-24
Checking the brake fluid level ............................ 6-25
Changing the brake fluid .................................... 6-26
Drive chain slack ................................................ 6-26
Lubricating the drive chain ................................. 6-28
Checking and lubricating the cables .................. 6-28Checking and lubricating the throttle grip and
cable ............................................................... 6-29
Checking and lubricating the brake and
shift pedals ...................................................... 6-29
Checking and lubricating the brake and
clutch levers .................................................... 6-29
Checking and lubricating the sidestand ............ 6-30
Lubricating the rear suspension ........................ 6-30
Checking the front fork ...................................... 6-31
Checking the steering ....................................... 6-31
Checking the wheel bearings ............................ 6-32
Battery ............................................................... 6-33
Replacing the fuses .......................................... 6-34
Replacing a headlight bulb ................................ 6-35
Replacing a tail/brake light bulb ........................ 6-36
Replacing a turn signal light bulb ...................... 6-37
Supporting the motorcycle ................................ 6-37
Front wheel ....................................................... 6-38
Rear wheel ........................................................ 6-39
Troubleshooting ................................................. 6-42
Troubleshooting charts ...................................... 6-43
U5PSE0.book Page 1 Thursday, December 13, 2001 4:29 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
EAU01880
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal col-
or when the motorcycle is ridden nor-
mally), and all spark plugs installed in
the engine should have the same color.
If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads. Specified spark plug:
DPR8EA-9 (NGK) or
X24EPR-U9 (DENSO)
a. Spark plug gap
Spark plug gap:
0.8–0.9 mm
Tightening torque:
Spark plug:
18 Nm (1.8 m·kgf)
U5PSE0.book Page 7 Thursday, December 13, 2001 4:29 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU04429
Engine oil and oil filter
element The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. _2. Start the engine, warm it up for
15 minutes, and then turn it off.3. Wait a few minutes until the oil set-
tles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in and with the arrow
mark pointing upward as shown),
and then remove it again to check
the oil level.
NOTE:_ The engine oil should be between the
minimum and maximum level marks. _
EC000000
CAUTION:_ Do not operate the motorcycle until
you know that the engine oil level is
sufficient. _
EW000065
WARNING
_ Never remove the engine oil tank
cap after high-speed operation, oth-
erwise hot engine oil could spout
out and cause damage or injury. Al-
ways let the engine oil cool down
sufficiently before removing the oil
tank cap. _
1. Oil filler cap
1. Oil filler cap
2. Dipstick
3. Maximum level mark
4. Minimum level mark
U5PSE0.book Page 9 Thursday, December 13, 2001 4:29 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
EAU04298
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the coolant level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the motorcycle is
positioned straight up when
checking the coolant level. A slight
tilt to the side can result in a false
reading.
_
2. Check the coolant level in the
coolant reservoir.NOTE:_ The coolant should be between the
minimum and maximum level marks. _
3. If the coolant is at or below the
minimum level mark, remove
panel B (See page 6-6 for panel
removal and installation proce-
dures.), remove the reservoir cap,
add coolant to the maximum level
mark, and then install the reservoir
cap and the panel.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1. Coolant reservoir capCoolant reservoir capacity:
0.3 L
U5PSE0.book Page 12 Thursday, December 13, 2001 4:29 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU03497
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.
ECA00065
CAUTION:@ Do not overtighten the screw, other-
wise the lens may break. @
EAU01579
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 mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed un-
der 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.
1. Screw
2. Turn signal light lens
1. Turn signal light bulb
U5PSE0.book Page 37 Thursday, December 13, 2001 4:29 PM