2000 YAMAHA DT125R Owners Manual

1-1
Motorcycles are fascinating vehicles, which can give you an unsurpassed feeling of power and free-
dom. However, they also impose certain limits, which you must accept; even the best motorcycle
does not ignore the laws of physics.
Regular care and maintenance are essential for preserving your motorcycleÕs value and operating
condition. Moreover, what is true for the motorcycle is also true for the rider: good performance
depends on being in good shape. Riding under the influence of medication, drugs and alcohol is, of
course, out of the question. Motorcycle riders - more than car drivers - must always be at their mental
and physical best. Under the influence of even small amounts of alcohol, there is a tendency to take
dangerous risks.
Protective clothing is as essential for the motorcycle rider as seat belts are for car drivers and passen-
gers. Always wear a complete motorcycle suit (whether made of leather or tear-resistant synthetic
materials with protectors), sturdy boots, motorcycle gloves and a properly fitting helmet. Optimum pro-
tective wear, however, should not encourage carelessness. Though full-coverage helmets and suits,
in particular, create an illusion of total safety and protection, motorcyclists will always be vulnerable.
Riders who lack critical self-control run the risk of going too fast and are apt to take chances. This is
even more dangerous in wet weather. The good motorcyclist rides safely, predictably and defensively
- avoiding all dangers, including those caused by others.
Enjoy your ride!
EAU00021
Q Q
GIVE SAFETY THE RIGHT OF WAY
1
2
3
4
5
6
7
8
9 3MB-9-E7 12/27/00 2:52 PM Page 8

3MB-9-E7 12/27/00 2:52 PM Page 9

EAU00026
DESCRIPTION
12
3
4
5
6
7
8
9
2-1
1
23 4 5 6
7 8
9 10
Left view1.Headlight (page 6-33)
2.Radiator cap (page 6-13)
3.Fuel cock (page 3-9)
4.Air filter (page 6-15)
5.Coolant reservoir tank (page 6-13)
6.Helmet holder (page 3-12)7.Starter (choke) (page 3-10)
8.Shift pedal (page 3-5, 5-4)
9.Y.E.I.S. (page 3-14)
10.Y.P.V.S. (page 3-15)
3MB-9-E7 12/27/00 2:52 PM Page 10

DESCRIPTION
12
3
4
5
6
7
8
9
2-2
111213
14 15
Right view11.Tool kit (page 6-1)
12.Fuse (page 6-33)
13.Engine oil tank (page 3-9)
14.Rear brake pedal (page 3-6, 6-22)
15.Rear shock absorber spring
preload adjusting nut (page 3-13)
3MB-9-E7 12/27/00 2:52 PM Page 11

12
3
4
5
6
7
8
9
DESCRIPTION
2-3
16.Clutch lever (page 3-5, 6-21)
17.Left handlebar switches (page 3-4)
18.Speedometer (page 3-3)
19.Coolant temperature gauge (page 3-4)
20.Tachometer (page 3-3)21.Right handlebar switches (page 3-5)
22.Front brake lever (page 3-6, 6-27)
23.Throttle grip (page 6-17, 6-27)
24.Fuel tank cap (page 3-6)
25.Main switch (page 3-1)
16171819202122
23 24 25
Controls/Instruments
3MB-9-E7 12/27/00 2:52 PM Page 12

3-1
ON
OFF
EAU00028
Main switchThe main switch controls the ignition
and lighting systems. Its operation is
described below.
EAU00036
ON
Electrical circuits are switched on.
The engine can be started. The key
cannot be removed in this position.
EAU00038
OFF
All electrical circuits are switched off.
The key can be removed in this posi-
tion.EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
EAU00063
High beam indicator light Ò
&Ó
This indicator comes on when the
headlight high beam is used.
EAU01313
Oil level indicator light Ò
7
Ó
This indicator comes on when the oil
level is low. This light circuit can be
checked by the procedure on page 3-
2.EC000000
cCDo not run the motorcycle until
you know it has sufficient engine
oil.NOTE
Even if the oil is filled to the specified
level, the indicator light may flicker
when riding on a slope or during sud-
den acceleration or deceleration, but
this is normal.
1
2
3
4
EAU00056
Indicator lights
EAU00057
Turn indicator light Ò5Ó
This indicator flashes when the turn
switch is moved to the left or right.
EAU00061
Neutral indicator light ÒNÓ
This indicator comes on when the
transmission is in neutral.1.Turn indicator light Ò5Ó
2.High beam indicator light Ò&Ó
3.Neutral indicator light ÒNÓ
4.Oil level indicator light Ò
7
Ó
3MB-9-E7 12/27/00 2:52 PM Page 13

EAU00075
Oil level indicator circuit check
3-2
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9Turn the main switch to ÒONÓ.
Put the transmission in neutral.
Oil level indicator light
does not come on.Ask a Yamaha dealer to
inspect electrical circuit.
Oil level indicator light
comes on.
Oil level indicator light
does not come on.
Supply engine oil.
Shift into gear.
Engine oil level and
electrical circuit are OK.
Go ahead with riding.
Oil level indicator light
comes on.
3MB-9-E7 12/27/00 2:52 PM Page 14

3-3
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
1
2
1.Tachometer
2.Red zone
EAU00102
TachometerThis model is equipped with a
tachometer so the rider can monitor
the engine speed and keep it within
the ideal power range.
EC000003
cCDo not operate in the red zone.
Red zone: 10,500 r/min and above
4
2
3
1
EAU01087
SpeedometerThe speedometer shows riding
speed. This speedometer is equipped
with an odometer and trip odometer.
The trip odometer can be reset to Ò0Ó
with the reset knob. Use the trip
odometer to estimate how far you
can ride on a tank of fuel. This infor-
mation will enable you to plan fuel
stops in the future.1.Speedometer
2.Odometer
3.Trip odometer
4.Reset knob
NOTE:
(for German model equipped with
speed limiter only)
This motorcycle is equipped with a
speed limiter which prevents it from
exceeding a top speed of
80 km/h.
3MB-9-E7 12/27/00 2:52 PM Page 15