YAMAHA DT125R 2000 Service Manual

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*Wheels¥Check runout, spoke tightness and for damage.
¥Tighten spokes if necessary.ÖÖÖÖ
10*Tires¥Check tread depth and for damage.
¥Replace if necessary.
¥Check air pressure.
¥Correct if necessary.ÖÖÖÖ
11*Wheel bearings¥Check bearing for looseness or damage.ÖÖÖÖ
12*Swingarm¥Check operation and for excessive play.ÖÖÖÖ
13Drive chain¥Check chain slack.
¥Make sure that the rear wheel is properly aligned.
¥Clean and lubricate.Every 500 km and after washing
the motorcycle or riding in the rain.
14*Steering bearings¥Check bearing play and steering for roughness.ÖÖÖÖÖ
¥Lubricate with lithium-soap-based grease.Every 24,000 km
15*Chassis fasteners¥Make sure that all nuts, bolts and screws are properly tightened.ÖÖÖÖÖ
16Sidestand¥Check operation.
¥Lubricate.ÖÖÖÖÖ
17*Sidestand switch¥Check operation.ÖÖÖÖÖÖ
18*Front fork¥Check operation and for oil leakage.ÖÖÖÖ
19*Shock absorber
assembly¥Check operation and shock absorber for oil leakage.ÖÖÖÖ
20*Rear suspension relay
arm and connecting arm
pivoting points¥Check operation.ÖÖÖÖ NO.ITEMCHECK OR MAINTENANCE JOBODOMETER READING (´ 1,000 km)
ANNUAL
CHECK
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EAU03884
NOTE:
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake service
9Regularly check and, if necessary, correct the brake fluid level.
9Every two years replace the internal components of the brake master cylinders and calipers, and change the
brake fluid.
9Replace the brake hoses every four years and if cracked or damaged.21
*Carburetor¥Check starter (choke) operation.
¥Adjust engine idling speed.ÖÖÖÖÖÖ
22*Autolube pump¥Check operation.
¥Bleed if necessary.ÖÖÖÖ
23Transmission oil¥Check oil level.ÖÖÖÖÖÖ
¥Change.ÖÖ
24*Cooling system¥Check coolant level and vehicle for coolant leakage.ÖÖÖÖÖ
¥Change.Every 3 years
25*Front and rear brake
switches¥Check operation.ÖÖÖÖÖÖ
26Moving parts and cables¥Lubricate.ÖÖÖÖÖ
27*Lights, signals and
switches¥Check operation.
¥Adjust headlight beam.ÖÖÖÖÖÖ NO.ITEMCHECK OR MAINTENANCE JOBODOMETER READING (´ 1,000 km)
ANNUAL
CHECK
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EAU01065
Cowling removal and
installationThe cowlings indicated in the illustra-
tion need to be removed to perform
some of the maintenance described
in this chapter.
Refer to this section each time a
cowling has to be removed or rein-
stalled.1.Cowling A
2.Cowling B1.Cowling C1.Screw (´2)
EAU01534*
Cowling ATo remove
Remove the screws and pull outward
as shown.
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1
1.Screw (´3)
EAU01534*
Cowling BTo remove
Remove the screws and pull outward
as shown.
To install
Place in the original position and
install the screws. To install
Place in the original position and
install the screws.
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EAU01534*
Cowling CTo remove
Remove the screws and pull outward
as shown.1.Screw (´3)1.Panel D
To install
Place in the original position and
install the screws.
EAU01122
Panel removal and
installationThe panels illustrated need to be
removed to perform some of the
maintenance described in this chap-
ter.
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1
Refer to this section each time a
panel has to be removed or rein-
stalled.
EAU01535*
Panel DTo remove
Remove the screw and pull outward
as shown.
To install
Place the panel in the original posi-
tion and install the screw.
EAU01535*
Panel ETo remove
Remove the screw and pull outward
as shown.
To install
Place the panel in the original posi-
tion and install the screw.
1.Panel E1.Screw1.Screw
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EAU01833
Spark plugRemoval
1.Remove the spark plug cap.2.Use the spark plug wrench in the
tool kit to remove the spark plug
as shown.Inspection
The spark plug is an important
engine component and is easy to
inspect. The condition of the spark
plug can indicate the condition of the
engine.
The ideal color on the white insulator
around the center electrode is a
medium-to-light tan color for a motor-
cycle that is being ridden normally.
Do not attempt to diagnose such
problems yourself. Instead, take the
motorcycle to a Yamaha dealer. You
should periodically remove and
inspect the spark plug because heat
and deposits will cause any spark
plug to slowly break down and erode.
If electrode erosion becomes exces-
sive, or if carbon and other deposits
are excessive, you should replace
the spark plug with the specified plug.1.Spark plug cap
Specified spark plug:
BR9ES (NGK)
BR8ES (NGK) (CH, A only)
1
1.Spark plug wrench
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9 Spark plug gap:
0.7 ~ 0.8 mm
Tightening torque:
Spark plug:
20 Nm (2.0 m
0kg)
1
3 2
EAU03109
Transmission oilOil level inspection
1.Place the motorcycle on a level
place and hold it in an upright
position. Warm up the engine for
several minutes.NOTE:
Be sure the motorcycle is positioned
straight up when checking the oil
level. A slight tilt toward the side can
result in false readings.1.Level window
2.Maximum level
3.Minimum level
Installation
1.Measure the electrode gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
2.Clean the gasket surface. Wipe
off any grime from the threads.
3.Install the spark plug and tighten
it to the specified torque.
1
1.Spark plug gap
NOTE:
If a torque wrench is not available
when you are installing a spark plug,
a good estimate of the correct torque
is 1/4 to 1/2 turn past finger tight.
Have the spark plug tightened to the
specified torque as soon as possible.4.Install the spark plug cap.
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95.Fill the engine with sufficient oil
to reach the specified level.
Install the oil filler cap and tight-
en it.
EC000079
cCDo not put in any chemical addi-
tives. Transmission oil also lubri-
cates the clutch and additives
could cause clutch slippage.6.Start the engine and warm up for
a few minutes. While warming
up, check for oil leakage. If oil
leakage is found, stop the engine
immediately and check for
cause. Recommended oil:
See page 8-1.
Oil quantity:
Total amount: 0.8 L
Periodic oil change: 0.75 L
1
Transmission oil replacement
1.Warm up the engine for several
minutes.
2.Stop the engine. Place an oil pan
under the engine to catch the oil
and remove the oil filler cap.
3.Remove the drain bolt and drain
the oil.
4.Install the drain bolt and tighten it
to the specified torque.1.Drain bolt
Tightening torque:
Drain bolt:
15 Nm (1.5 m
0kg)
1
2.With the engine stopped, check
the oil level through the level
window located at the right side
crankcase cover.NOTE:
Wait a few minutes until the oil level
settles before checking.3.The oil level should be between
the maximum and minimum level
on the level window. If the level
is low, add sufficient oil to raise it
to the specified level.1.Oil filler cap
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EAU01808
Cooling system1.Remove panel D. (See page 6-9
for panel removal and installation
procedures.)
2.Check the coolant level in the
reservoir tank when the engine is
cold as the coolant level will vary
with engine temperature. The
coolant level should be between
the maximum and minimum
marks.
3.If the level is low, add coolant or
distilled water to raise it to the
specified level.4.Install the panel.
EC000080
cCHard water or salt water is harmful
to the engine. You may use dis-
tilled water if you canÕt get soft
water.NOTE:
If water is added, have a Yamaha
dealer check the antifreeze content of
the coolant as soon as possible.If your motorcycle overheats, see
page 6-41 for details.
2
1
1.Maximum level mark
2.Minimum level mark
EAU03101
Changing the coolant1.Put the motorcycle on a level
place.
2.Remove cowling C and panel D.
(See page 6-8 ~ 6-9 for cowling
and panel removal and installa-
tion procedures.)
3.Remove the radiator cap stopper
bolt and the radiator cap.
12
1.Stopper bolt
2.Radiator cap
Reservoir tank capacity:
0.35 L
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