2000 YAMAHA DT125R stop start

3-5
INSTRUMENT AND CONTROL FUNCTIONS
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1
1.Engine stop switch
EAU00138
Engine stop switch
The engine stop switch is a safety
device for use in an emergency such
as when the motorcycle overturns or
if trouble occurs in the throttle sys-
tem. Turn the switch to Ò#Ó to start
the engine. In case of emergency,
turn the switch to Ò$Ó to stop the
engine.
EAU00155
Clutch leverThe clutch lever is located on the left
handlebar. Pull the clutch lever to the
handlebar to disengage the clutch,
and release the lever to engage the
clutch. The lever should be pulled
rapidly and released slowly for
smooth clutch operation.
6
5
4
3
2
1 N
1
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Shift pedalThis motorcycle is equipped with a
constant-mesh 6-speed transmission.
The shift pedal is located on the left
side of the engine and is used in
combination with the clutch when
shifting.1.Shift pedal
N.Neutral
1
1.Clutch lever
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EW000045
wIf improper operation is noted,
consult a Yamaha dealer immedi-
ately.
3-16
INSTRUMENT AND CONTROL FUNCTIONS
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ENGINE WILL STALL.SIDESTAND SWITCH IS OK.
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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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5-2
OPERATION AND IMPORTANT RIDING POINTS
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IF TRANSMISSION IS IN NEUTRAL
AND SIDESTAND IS DOWN,KICK THE KICK STARTER.
ENGINE WILL START.RETRACT SIDESTAND AND PUT
TRANSMISSION IN GEAR.
MOTORCYCLE CAN BE RIDDEN.
MOTORCYCLE CAN BE RIDDEN.
IF TRANSMISSION IS IN GEAR
AND SIDESTAND IS UP,APPLY THE CLUTCH LEVER AND KICK
THE KICK STARTER.
ENGINE WILL START.
TURN THE MAIN SWITCH TO "ON" AND
THE ENGINE STOP SWITCH TO Ò#Ó.
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5-3
OPERATION AND IMPORTANT RIDING POINTS
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9 1.Turn the fuel cock to ÒONÓ.
2.Turn the main switch to ÒONÓ and
the engine stop switch to Ò#Ó.
3.Shift the transmission into neu-
tral.
NOTE:
When the transmission is in neutral,
the neutral indicator light should be
on. If the light does not come on, ask
a Yamaha dealer to inspect it.4.Turn on the starter (choke) and
completely close the throttle grip.
5.Kick the kick starter to start the
engine.
6.After starting the engine, move
the starter (choke) to the halfway
position.
NOTE:
For maximum engine life, never
accelerate hard with a cold engine!7.After the engine is warm, turn off
the starter (choke) completely.NOTE:
The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off.
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Starting a warm engineThe starter (choke) is not required
when the engine is warm.
EC000046
cCSee the ÒEngine break-inÓ section
prior to operating the motorcycle
for the first time.
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5-5
OPERATION AND IMPORTANT RIDING POINTS
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EAU00424
Tips for reducing fuel
consumptionYour motorcycleÕs fuel consumption
depends to a large extent on your rid-
ing style. The following tips can help
reduce fuel consumption:
8Warm up the engine before rid-
ing.
8Turn off the starter (choke) as
soon as possible.
8Shift up swiftly and avoid high
engine speeds during accelera-
tion.
8Do not double-clutch or rev the
engine while shifting down and
avoid high engine speeds with
no load on the engine.
8Turn off the engine instead of let-
ting it idle for an extended length
of time, i.e. in traffic jams, at traf-
fic lights or railroad crossings.
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Engine break-inThere is never a more important peri-
od in the life of your motorcycle than
the period between zero and 1,000
km. For this reason we ask that you
carefully read the following material.
Because the engine is brand new,
you must not put an excessive load
on it for the first 1,000 km. The vari-
ous parts in the engine wear and pol-
ish themselves to the correct operat-
ing clearances. During this period,
prolonged full throttle operation, or
any condition which might result in
excessive heating of the engine,
must be avoided.
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0 ~ 500 km
Avoid operation above 6,000 r/min.
Stop the engine and let it cool for 5 to
10 minutes after every hour of opera-
tion. Vary the speed of the motorcy-
cle from time to time. Do not operate
it at one set throttle position.
500 ~ 1,000 km
Avoid prolonged operation above
7,000 r/min. Rev the motorcycle
freely through the gears, but do not
use full throttle at any time.
EC000060
cCAfter 1,000 km of operation, be
sure to replace the transmission
oil.
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6-12
PERIODIC MAINTENANCE AND MINOR REPAIR
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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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6-17
PERIODIC MAINTENANCE AND MINOR REPAIR
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b
a
1
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Idle speed adjustment1.Start the engine and warm it up
for a few minutes at approxi-
mately 1,000 to 2,000 r/min.
Occasionally rev the engine to
4,000 to 5,000 r/min. The engine
is warm when it quickly responds
to the throttle.
2.Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw in direction ato increase
engine speed and in direction b
to decrease engine speed.1.Throttle stop screw
NOTE:
If the specified idle speed cannot be
obtained by performing the above
adjustment, consult a Yamaha deal-
er.
Standard idle speed:
1,250 ~ 1,450 r/min
a
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Throttle cable free play
adjustmentNOTE:
Before checking the throttle cable
free play, the engine idling speed
should be adjusted.Adjust the throttle cable by turning
the adjusting nut so that specified
free play at the throttle grip is
obtained.a.Free play
Free play:
3 ~ 5 mm
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6-41
PERIODIC MAINTENANCE AND MINOR REPAIR
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4. Engine overheating
EW000070
wDo 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. Open the radiator cap as follows. Wait until the
engine has cooled. Remove the radiator cap stopper by removing the screw. Place a thick rag like a towel over
the radiator cap and slowly rotate the cap counterclockwise to the detent. This procedure allows any residual
pressure to escape. When the hissing sound has stopped, press down on the cap while turning counterclock-
wise and remove it.Wait until the
Check the coolant level in the
Level is OK.Level is low, check the
NoLeakage.
Ask a Yamaha dealer to inspectAdd coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
engine has cooled.reservoir tank and/or radiator.cooling system for leakage.
Yamaha dealer to inspect and repair the cooling system. leakage.
and repair the cooling system.
NOTE:
If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the rec-
ommended coolant as soon as possible.
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