lock YAMAHA TDR 125 2001 User Guide

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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU03774
Checking the brake fluid
levelInsufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low
brake fluid level may indicate worn
brake pads and/or brake system
leakage. If the brake level is low, be
sure to check the brake pads for
wear and the brake system for leak-
age.
1
LOWER
1.Minimum level mark FRONT
8Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking perfor-
mance.
8Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
8Brake fluid may deteriorate paint-
ed surfaces or plastic parts.
Always clean up spilled fluid
immediately.
8As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
1
LOWER UPPER
1.Minimum level markObserve these precautions:
8When checking the fluid level,
make sure that the top of the
brake fluid reservoir is level.
8Use only the recommended qual-
ity brake fluid, otherwise the rub-
ber seals may deteriorate, caus-
ing leakage and poor braking
performance.REARRecommended brake fluid:
DOT 4
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EAU03752
To adjust the drive chain slack
1.Loosen the axle nut, then loosen
the locknut at each end of the
swingarm.
2.To tighten the drive chain, turn
the adjusting nut at each end of
the swingarm in direction a. To
loosen the drive chain, turn the
adjusting nut at each end of the
swingarm in direction b, and
then push the rear wheel for-
ward.
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3
a
b1.Axle nut
2.Lock nut
3.Adjusting nut
4.Alignment marks
EAU03006
Lubricating the drive chainThe 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.
EC000097
cCThe drive chain must be lubricated
after washing the motorcycle or
riding in the rain.1.Clean the drive chain with
kerosene and a small soft brush.
ECA00053
cCTo prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents.
NOTE:
Using the alignment marks on each
side of the swingarm, make sure that
both adjusting nuts are in the same
position for proper wheel alignment.
EC000096
cCImproper drive chain slack will
overload 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 to the speci-
fied torque.
Tightening torque:
Axle nut:
104 Nm (10.4 m0kg)
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3.Remove the socket (together
with the bulb) by turning it coun-
terclockwise.
4.Remove the defective bulb by
pushing it in and turning it coun-
terclockwise.
5.Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
6.Install the socket (together with
the bulb) by turning it clockwise.
7.Install the panel and the seat.1.Socket
1
1.Bulb2.Remove the defective bulb by
pushing it in and turning it coun-
terclockwise.
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
cCDo not overtighten the screw, oth-
erwise the lens may break.
12
EAU03497
Replacing a turn signal light
bulb1.Remove the turn signal light lens
by removing the screw.1.Lens
2.Screw
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2.Lift the rear wheel off the ground
according to the procedure on
page 6-37.
3.Remove the axle nut.
4.Loosen the locknut and the
adjusting nut on each end of the
swingarm.
5.Push the wheel forward, 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 wheel.
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3
EAU03755
Rear wheelTo remove the rear wheel
EW000122
w8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so that there is no danger
of it falling over.1.Loosen the axle nut.1.Axle nut
2.Lock nut
3.Adjusting nut
8.Connect the speedometer cable. Tightening torque:
Front wheel axle pinch bolt:
20 Nm (2.0 m0kg)
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9Engine overheating
EW000070
w8Do 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.
8After 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.
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