2000 YAMAHA TDR 125 fuel

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PERIODIC MAINTENANCE AND MINOR REPAIR
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8 8
Support the fuel tank carefully
during this procedure.
8 8
Do not tilt the fuel tank too
much or pull it too hard
because the fuel hose connec-
tions may become loose caus-
ing fuel leakage.
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2
1. Relay (´2)
2. Screw (´7)
5. Remove the relays and the
screws holding the air filter case
cover.
1
1. Air filter
6. Remove the air filter element
from its case and clean it with
solvent. After cleaning, remove
the remaining solvent by squeez-
ing the air filter.
7. Apply recommended oil to the
entire surface of the air filter and
squeeze out the excess oil. The
air filter should be wet but not
dripping.
8. Install the air filter element in its
case.
9. Reinstall the parts removed for
access. Recommended oil:
2-stroke engine oil
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PERIODIC MAINTENANCE AND MINOR REPAIR
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Make sure the air filter is prop-
erly seated in the air filter
case.
8 8
The engine should never be
run without the air filter
installed. Excessive piston
and/or cylinder wear may
result.
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Make sure that the fuel hoses and
vacuum hose are properly con-
nected, in place and not pinched. If
a hose is damaged, be sure to
replace it.
EAU00629Carburetor adjustment
The carburetor is a vital part of the
engine and requires very sophisticat-
ed adjustment. Most adjustments
should be left to a Yamaha dealer
who has the professional knowledge
and experience to do so. However,
the following may be serviced by the
owner as part of routine mainte-
nance.
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The carburetor was set at the
Yamaha factory after many tests. If
the settings are changed, poor
engine performance and damage
may result.
ba
1
EAU00632Idle speed adjustment
1. Start the engine and warm it up
for a few minutes at approxi-
mately 1,000 to 2,000 r/min.
Occasionally rev the engine to
4,000 to 5,000 r/min. The engine
is warm when it quickly responds
to the throttle.
2. Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw in direction ato increase
engine speed and in direction b
to decrease engine speed.
1. Throttle stop screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
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9 4. Adjust the drive chain. (See page
6-24 for adjusting the drive chain
slack.)
5. Tighten the axle nut to the speci-
fied torque.
Tightening torque:
Axle nut:
104 Nm (10.4 m0kg)
EAU01008Troubleshooting
Although Yamaha motorcycles
receive a rigid inspection before ship-
ment from the factory, trouble may
occur during operation.
Any problem in the fuel, compres-
sion, or ignition systems can cause
poor starting and loss of power. The
troubleshooting chart describes a
quick, easy procedure for making
checks.
If your motorcycle requires any
repair, bring it to a Yamaha dealer.
The skilled technicians at a Yamaha
dealership have the tools, experi-
ence, and know-how to properly ser-
vice your motorcycle. Use only gen-
uine Yamaha parts on your
motorcycle. Imitation parts may look
like Yamaha parts, but they are often
inferior. Consequently, they have a
shorter service life and can lead to
expensive repair bills.
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EAU01581Troubleshooting chartEW000125
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Never check the fuel system while smoking or in the vicinity of an open flame.
1. Fuel
2. Compression
3. Ignition
4. Battery
Use electric starter.
Remove spark
There is compression.
Go to ignition check.
No compression.
Ask a Yamaha dealer to inspect.
Wet.
Dry.Wipe clean with dry cloth and correct
Open throttle half-way and start
Ask a Yamaha dealer to inspect.
Check if there is fuel
Enough fuel.
No fuel.Go to compression check.
Supply fuel.
in the fuel tank.
electrodes. plug and check
Engine doesn’t start, go to battery
check. the engine. spark gap or replace spark plug.
Engine turns over
Engine turns overBattery good.
Check connections or
quickly.
slowly. recharge.Engine doesn’t start, ask aYamaha dealer to inspect.
Engine doesn’t start, go to compression check.
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7-2
8 8
Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or
sponge with mild detergent
and water to clean plastic.
8 8
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abra-
sive cleaning products, sol-
vent or thinner, fuel (gasoline),
rust removers or inhibitors,
brake fluid, antifreeze or elec-
trolyte.8 8
Do not use high-pressure
washers or steam-jet cleaners
since they cause water seep-
age and deterioration in the
following areas: seals (of
wheel bearings, swingarm
bearings, forks and brakes),
electric components (cou-
plers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
8 8
For motorcycles equipped
with a windshield: Do not use
strong cleaners or hard
sponges as they will cause
dulling or scratching. Some
cleaning compounds for plas-
tic may leave scratches on the
windshield. Test the product
on a small hidden part of the
windshield to make sure they
do not leave any marks. If the
windshield is scratched, use a
quality plastic polishing com-
pound after washing.After riding in the rain, near the sea
or on salt-sprayed roads
Since sea salt or salt sprayed on the
roads in the winter are extremely cor-
rosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads. (Salt sprayed
in the winter may remain on the roads
well into spring.)
1. Clean your motorcycle with cold
water and soap after the engine
has cooled down.
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Do not use warm water since it
increases the corrosive action of
the salt.
2. Be sure to apply a corrosion pro-
tection spray on all (even
chrome- and nickel-plated) metal
surfaces to prevent corrosion.
MOTORCYCLE CARE AND STORAGE
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7-4
Storage
Short-term
Always store your motorcycle in a
cool, dry place and, if necessary, pro-
tect it against dust with a porous
cover.
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8
Storing the motorcycle in a
poorly ventilated room or cov-
ering it with a tarp while it is
still wet will allow water and
humidity to seep in and cause
rust.
8 8
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Drain the carburetor float cham-
ber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the
drained fuel into the fuel tank.
3. Only for motorcycles equipped
with a fuel cock which has an
“OFF” position: Turn the fuel
cock to “OFF”.
4. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug and place the
spark plug on the cylinder head
so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, install the spark
plug and then the spark plug
cap.
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When turning the engine over, be
sure to ground the spark plug elec-
trodes to prevent damage or injury
from sparking.
MOTORCYCLE CARE AND STORAGE
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SPECIFICATIONS
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Specifications
Model TDR125
Dimensions
Overall length 2,120 mm
(F, GB, IRL, B, P, GR, E)
2,185 mm (S, SF, D, CH, A)
Overall width 840 mm
Overall height 1,295 mm
Seat height 850 mm
Wheel base 1,405 mm
Ground clearance 270 mm
Minimum turning radius 2,200 mm
Basic weight (with oil and full
fuel tank)135 kg
136 kg (CH, A)
Engine
Engine type Liquid cooled 2-stroke,
gasoline
Cylinder arrangement Forward inclined single
cylinder
Displacement 125 cm
3
Bore ´Stroke 56.0 ´50.7 mm
Compression ratio 6.6:1
Starting system Electric starter
Lubrication system Separate lubrication
(Yamaha Autolube)Engine oil (2-cycle)
Type Yamaha oil 2T or equivalent
2-stroke engine oil
Capacity
Total amount 1.2 L
Transmission oil
Type SAE 10W30 SE motor oil
Capacity
Periodic oil change 0.75 L
Total amount 0.8 L
Radiator capacity
(Including all routes) 1.05 L
Air filterWet type element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 11 L
Reserve amount 2.2 L
Carburetor
Type/quantity TM28SS/1
Manufacturer MIKUNI
EAU01038
SPECIFICATIONS
8-1
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INDEX
Engine stop switch ..................................3-7
Engine temperature gauge ......................3-5
F
Front brake lever .....................................3-8
Front brake lever free play
adjustment ..........................................6-20
Front fork inspection ..............................6-28
Front wheel installation..........................6-34
Front wheel removal ..............................6-33
Fuel .......................................................3-10
Fuel cock ...............................................3-12
Fuel tank cap ...........................................3-9
Fuse replacement..................................6-30
H
Handlebar switches .................................3-5
Dimmer switch ......................................3-5
Engine stop switch ................................3-7
Headlight beam variation ......................3-6
Horn switch ...........................................3-5
Lights switch .........................................3-5
Start switch ...........................................3-7
Turn signal switch .................................3-5
Headlight beam variation.........................3-6
Headlight bulb replacement...................6-31
Helmet holder ........................................3-14
High beam indicator light .........................3-2
Horn switch..............................................3-5
How to use the conversion table .............8-5
I
Identification number records ..................9-1
Idle speed adjustment ...........................6-15
Indicator lights .........................................3-2
High beam indicator light ......................3-2Neutral indicator light ............................3-2
Oil level indicator light ...........................3-2
Turn indicator light ................................3-2
Inspecting the brake fluid level ..............6-22
K
Key identification number ........................9-1
L
Lights switch ............................................3-5
Left view ..................................................2-1
M
Main switch/Steering lock ........................3-1
Model lavel ..............................................9-2
N
Neutral indicator light...............................3-2
Note on handling of the Yamaha
Energy Induction System (Y.E.I.S.) ....3-15
O
Oil level indicator circuit check ................3-3
Oil level indicator light .............................3-2
P
Panel A ....................................................6-7
Parking ....................................................5-6
Periodic maintenance and
lubrication .............................................6-3
Pre-operation check list ...........................4-1
R
Rear brake pedal .....................................3-9
Rear brake pedal height adjustment .....6-20
Rear shock absorber adjustment ..........3-14
Rear suspension lubrication ..................6-27
Rear wheel installation ..........................6-35
Rear wheel removal ..............................6-34A
Air filter ..................................................6-13
Autolube pump adjustment....................6-26
B
Battery ...................................................6-29
Brake and clutch lever lubrication .........6-27
Brake and shift pedal lubrication ...........6-26
Brake fluid replacement.........................6-23
Brake light switch adjustment ................6-21
C
Cable inspection and lubrication ...........6-25
Carburetor adjustment...........................6-15
Care.........................................................7-1
Catalyzer
(for Switzerland and Austria) ..............3-11
Checking the front and rear brake
pads ....................................................6-21
Clutch lever .............................................3-8
Clutch lever free play adjustment ..........6-19
Controls/Instruments ...............................2-3
Cooling system ......................................6-11
Cowling A, B ............................................6-7
Cowling and panel removal and
installation .............................................6-6
D
Description ..............................................2-1
Dimmer switch .........................................3-5
Drive chain lubrication ...........................6-25
Drive chain slack adjustment.................6-24
Drive chain slack check .........................6-23
E
Engine break-in .......................................5-5
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