2000 YAMAHA DT125R Owners Manual

3-12
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
To install
1.Insert the projections on the front
of the seat into the holders, then
tighten the seat bolts.
2.Install the panels.NOTE:
Make sure that the seat is securely
fitted.
1
EAU00261
Helmet holderTo open the helmet holder, insert the
key in the lock and turn it as shown.
To lock the helmet holder, turn the
key to its original position.
EW000030
wNever ride with a helmet in the hel-
met holder. The helmet may hit
objects, causing loss of control
and possibly an accident.1.Open
1
EAU01648
SeatTo remove
1.Remove panels D and E. (See
page 6-9 for panel removal and
installation procedures.)
2.Remove the seat bolts and lift
the seat upward.1.Bolt (
´2)
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3-13
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
b
a21
EAU01650
Rear shock absorber
adjustmentThis shock absorber is equipped with
a spring preload adjuster. Adjust
spring preload as follows.
1.Loosen the locknut.
2.Turn the adjusting nut in direc-
tion ato increase spring preload
and in direction bto decrease
spring preload. The spring pre-
load is determined by the spring
set length.
Shortening the spring set length
increases spring preload, length-
ening the spring set length
decreases spring preload.1.Locknut
2.Adjusting nut
“A”
EC000015
cCNever attempt to turn an adjuster
beyond the maximum or minimum
setting.
Spring preload:
Minimum (soft):
Distance ÒAÓ = 235 mm
Standard:
Distance ÒAÓ = 230 mm
Maximum (hard):
Distance ÒAÓ = 220 mm
3.Tighten the locknut to the speci-
fied torque.
EC000018
cCAlways tighten the locknut against
the spring adjusting nut and tight-
en the locknut to the specified
torque.
Tightening torque:
Locknut:
55 Nm (5.5 m0kg)
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3-14
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
12
1.Air chamber
2.Hose
EAU00325
Note on handling of the
Yamaha Energy Induction
System (Y.E.I.S.)Handle the air chamber and hose
with special care. Improper installa-
tion or damaged parts will result in
poor performance. Replace any
cracked or damaged parts immedi-
ately. No modification of this system
in any form can be made.
EC000022
cCNever attempt to modify the
Yamaha Energy Induction System.
EAU00315
wThis shock absorber contains
highly pressurized nitrogen gas.
Read and understand the following
information before handling the
shock absorber. The manufacturer
cannot be held responsible for
property damage or personal
injury that may result from improp-
er handling.
8 8
Do not tamper with or attempt
to open the cylinder assembly.
8 8
Do not subject the shock
absorber to an open flame or
other high heat source. This
may cause the unit to explode
due to excessive gas pres-
sure.
8 8
Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.
8 8
Take your shock absorber to a
Yamaha dealer for any service.
1
EAU00320
Rear carrier
EW000032
wDo not exceed the load limit of
2 kg.1.Rear carrier
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3-15
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
EC000023
cCThe Y.P.V.S. was set at the
Yamaha factory after many tests. If
the settings are disturbed by
someone without sufficient techni-
cal knowledge, poor engine perfor-
mance and damage may result.The Y.P.V.S. operation can be heard
in the following instances:
8When the main switch is turned
on and the engine is started.
8When the engine stalls while the
main switch is on.
EC000024
cCIf the Y.P.V.S. does not operate,
ask a Yamaha dealer to inspect the
vehicle.
1
1.Y.P.V.S.
EAU00326
Y.P.V.S. (Yamaha Power
Valve System)The Y.P.V.S. is a vital part of the
engine and requires very sophisticat-
ed adjustment. Adjustment should be
left to a Yamaha dealer who has the
professional knowledge and experi-
ence to do so.
EAU00330
SidestandThis model is equipped with an igni-
tion circuit cut-off system. The motor-
cycle must not be ridden when the
sidestand is down. The sidestand is
located on the left side of the frame.
(Refer to page 5-1 for an explanation
of this system.)
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EW000045
wIf improper operation is noted,
consult a Yamaha dealer immedi-
ately.
3-16
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
ENGINE WILL STALL.SIDESTAND SWITCH IS OK.
EAU00333
Sidestand switch operation
checkCheck the operation of the sidestand
switch against the information below.TURN THE MAIN SWITCH TO ÒONÓ AND
THE ENGINE STOP SWITCH TO Ò#Ó.TRANSMISSION IS IN NEUTRAL AND
SIDESTAND IS DOWN.PULL IN THE CLUTCH LEVER AND
PUT TRANSMISSION IN GEAR.ENGINE WILL START.KICK THE KICK STARTER.
EW000044
wThis motorcycle must not be oper-
ated with the sidestand in the
down position. If the stand is not
properly retracted, it could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha has designed into
this motorcycle a lockout system
to assist the operator in fulfilling
the responsibility of retracting the
sidestand. Please check carefully
the operating instructions listed
below and if there is any indication
of a malfunction, return the motor-
cycle to a Yamaha dealer immedi-
ately for repair.
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4-1
EAU01114
PRE-OPERATION CHECKS
1
2
34
5
6
7
8
9 Owners are personally responsible for their vehicleÕs condition. Your motorcycleÕs vital functions can start to deteriorate
quickly and unexpectedly, even if it remains unused (for instance, if it is exposed to the elements). Any damage, fluid
leak or loss of tire pressure could have serious consequences. Therefore, it is very important that, in addition to a thor-
ough visual inspection, you check the following points before each ride.
EAU00340
PRE-OPERATION CHECK LIST
ITEMCHECKSPAGE
Front brake9Check operation, free play, fluid level and vehicle for fluid leakage.
9Fill with DOT 4 (or DOT 3) brake fluid if necessary.
3-6, 6-21 ~ 6-25
Rear brake9Check operation, free play, fluid level and vehicle for fluid leakage.
9Fill with DOT 4 (or DOT 3) brake fluid if necessary.
Clutch9Check operation, condition and free play.
3-5, 6-21
9Adjust if necessary.
9Check for smooth operation.
Throttle grip and housing9Lubricate.6-17, 6-27
9Adjust throttle cable free play if necessary.
Engine oil9Check oil level.
3-9
9Fill with oil if necessary.
Transmission oil9Check oil level.
6-11 ~ 6-12
9Fill with oil if necessary.
Coolant9Check coolant level.
6-12
9Fill with coolant if necessary.
Drive chain9Check chain slack and condition.
6-26 ~ 6-27
9Adjust if necessary.
Wheels and tires9Check tire pressure, wear, damage and spoke tightness.
6-18 ~ 6-20
9Tighten spokes if necessary.
Control and meter cable9Check for smooth operation.
6-27
9Lubricate if necessary.
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4-2
PRE-OPERATION CHECKS
1
2
34
5
6
7
8
9
ITEMCHECKSPAGE
Brake and shift pedal shafts9Check for smooth operation.
6-28 9Lubricate if necessary.
Brake and clutch lever pivots9Check for smooth operation.
9Lubricate if necessary.
Sidestand pivot9Check for smooth operation.
6-29
9Lubricate if necessary.
Chassis fasteners9Make sure that all nuts, bolts and screws are properly tightened.
Ñ
9Tighten if necessary.
Fuel tank9Check fuel level.
3-6 ~ 3-8
9Fill with fuel if necessary.
Lights, signals and
9Check for proper operation.6-33 ~ 6-35
switches
Battery9Check fluid level.
6-31 ~ 6-32
9Fill with distilled water if necessary.
NOTE:
Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a
very short time; and the added safety it assures is more than worth the time involved.wIf any item in the Pre-Operation Check is not working properly, have it inspected and repaired before operating
the motorcycle.
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5-1
1
2
3
45
6
7
8
9
EAU00373
w8 8
Before riding this motorcycle,
become thoroughly familiar
with all operating controls and
their functions. Consult a
Yamaha dealer regarding any
control or function that you do
not thoroughly understand.
8 8
Never start your engine or let
it run for any length of time in
a closed area. The exhaust
fumes are poisonous and can
cause loss of consciousness
and death within a short time.
Always operate your motorcy-
cle in an area with adequate
ventilation.
8 8
Before starting out, always be
sure the sidestand is up.
Failure to retract the sidestand
completely can result in a seri-
ous accident when you try to
turn a corner.
EAU01177
Starting the engineNOTE:
This motorcycle is equipped with an
ignition circuit cut-off system. The
engine can be started only under one
of the following conditions:
8The transmission is in neutral.
8The sidestand is up, the trans-
mission is in gear and the clutch
is disengaged.
The motorcycle must not be ridden
when the sidestand is down.
EW000056
wBefore going through the following
steps, check the function of the
sidestand switch. (Refer to page
3-16.)
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
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