2001 YAMAHA TDR 125 coolant

EW000067
wNever attempt to remove the radia-
tor cap when the engine is hot.NOTE:
If the engine overheats, see page
6-43 for further instructions.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU03746
To change the coolant
1.Place the motorcycle on a level
surface and let the engine cool if
necessary.
2.Remove the seat. (See page
3-12 for seat removal and instal-
lation procedures.)
3.Remove the radiator cover and
cowling B. (See pages 6-6 for
cowling removal and installation
procedures.)
4.Remove the radiator cap .
EW000067
wNever attempt to remove the radia-
tor cap when the engine is hot.
1
1.Radiator cap
1
5.Place a container under the
engine to collect the used
coolant.
6.Remove the coolant drain bolt
and disconnect the hose on the
side of the reservoir to drain the
reservoir.
7.After the coolant is completely
drained, thoroughly flush the
cooling system with clean tap
water.
8.Install the coolant drain bolt, and
then tighten it to the specified
torque.1.Coolant drain bolt
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NOTE:
Check the washer for damage and
replace it if necessary.9.Install the reservoir tank hose.1.Hose
Tightening torque:
Coolant drain bolt:
8 Nm (0.8 m0kg)
10.Pour the recommended coolant
into the radiator until it is full.
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
1.05 L
Coolant reservoir capacity:
0.35 L
EC000080
cC8If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
8If water has been used instead
of coolant, replace it with
coolant as soon as possible,
otherwise the engine may not
be sufficiently cooled and the
cooling system will not be pro-
tected against frost and corro-
sion.
8If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be
reduced. 11.Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
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1.Coolant reservoir tank cap
2.Stopper
3.Screw
4.Maximum level mark
5.Minimum level mark12.Remove the radiator cap to
check the coolant level in the
radiator. If necessary, add suffi-
cient coolant until it reaches the
top of the radiator, and then
install the radiator cap.
13.Check the coolant level in the
reservoir. If necessary, remove
the coolant reservoir cap by
removing the screw and stopper,
add coolant to the maximum
level mark, and then install the
cap, stopper and screw.14.Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a
Yamaha dealer check the cool-
ing system.
15.Install the cowling, radiator cover
and seat.
1
EAU03747
Cleaning the air filter
elementThe air filter element should be
cleaned at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean the air filter element
more frequently if you are riding in
unusually wet or dusty areas.
1.Remove the seat. (See page
3-12 for seat removal and instal-
lation procedures.)
2.Remove cowlings A and B. (See
page 6-6 for cowling removal
and installation procedures.)
3.Remove the fuel tank bolt.1.Bolt
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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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