2000 YAMAHA DT125R torque

3-13
INSTRUMENT AND CONTROL FUNCTIONS
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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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6-1
EAU00462
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00464
Periodic inspection, adjustment and
lubrication will keep your motorcycle
in the safest and most efficient condi-
tion possible. Safety is an obligation
of the motorcycle owner. The mainte-
nance and lubrication schedule chart
should be considered strictly as a
guide to general maintenance and
lubrication intervals.
YOU MUST TAKE INTO CONSIDER-
ATION THAT WEATHER, TERRAIN,
GEOGRAPHICAL LOCATIONS, AND
A VARIETY OF INDIVIDUAL USES
ALL TEND TO DEMAND THAT
EACH OWNER ALTER THIS TIME
SCHEDULE TO SHORTER INTER-
VALS TO MATCH THE ENVIRON-
MENT. The most important points of
motorcycle inspection, adjustment,
and lubrication are explained in the
following pages.
EW000060
wIf you are not familiar with motor-
cycle service, this work should be
done by a Yamaha dealer.
1
EAU00469
Tool kitThe service information included in
this manual is intended to provide
you, the owner, with the necessary
information for completing some of
your own preventive maintenance
and minor repairs.
The tools provided in the ownerÕs tool
kit are to assist you in the perfor-
mance of periodic maintenance.
However, some other tools such as a
torque wrench are also necessary to
perform the maintenance correctly.1.Tool kit
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6-11
PERIODIC MAINTENANCE AND MINOR REPAIR
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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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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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6-14
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98.Install the reservoir tank hose.
9.Pour the recommended coolant
into the radiator until it is full.
Recommended antifreeze:
High quality ethylene glycol
antifreeze containing
corrosion inhibitors for
aluminum engines.
Antifreeze and water mixing ratio:
1:1
Total amount:
1.05 L
Reservoir tank capacity:
0.35 L
4.Place a container under the
engine and remove the coolant
drain bolt.5.Disconnect the reservoir tank
hose on the reservoir tank side
and drain the coolant from the
reservoir tank.
6.After draining the coolant, thor-
oughly flush the cooling system
with clean tap water.
7.Replace the coolant drain bolt
washer if it is damaged and tight-
en the coolant drain bolt to the
specified torque.
1
13
2
1.Drain bolt1.Reservoir tank hose
2.Maximum level mark
3.Minimum level mark
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m
0kg)
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6-26
PERIODIC MAINTENANCE AND MINOR REPAIR
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EC000096
cCToo little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits.3.Tighten the wheel axle nut to the
specified torque.
EAU01533*
Drive chain slack adjustment1.Loosen the wheel axle nut.
2.To tighten the chain, turn the
chain adjusting plates in direction
a. To loosen the chain, turn the
chain adjusting plates in direction
band push the wheel forward.
Turn each chain adjusting plate
to exactly the same position to
maintain correct axle alignment.
a b
2
1
1.Wheel axle nut
2.Chain adjusting plate
Tightening torque:
Wheel axle nut:
90 Nm (9.0 m
0kg)
EAU03006
Drive chain lubricationThe chain consists of many parts
which work with each other. If the
chain is not maintained properly, it
will wear out quickly. Therefore, the
chain must be serviced regularly.
This service is especially necessary
when riding in dusty areas. This
motorcycle is equipped with a sealed
type chain. Steam cleaning, high-
pressure washers, and solvents can
damage the drive chain, so do not
use these for cleaning it. Use only
kerosene to clean the drive chain.
Wipe it dry, and thoroughly lubricate it
with SAE 30 ~ 50W motor oil. Do not
use any other lubricants on the drive
chain. They may contain solvents
that could damage the sealed chain.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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3.Elevate the front wheel by plac-
ing a suitable stand under the
engine.
4.Loosen the wheel axle holder
nuts.
5.Remove the wheel axle and the
front wheel. Make sure the
motorcycle is properly supported.NOTE:
Do not depress the brake lever when
the disc and caliper are separated.
EAU03104
Front wheel installation1.Install the speedometer gear unit
housing into the wheel hub.
Make sure the speedometer gear
unit housing is installed with the
projections meshed into the
slots.
2.Lift up the wheel between the
front fork legs and guide the
brake disc between the brake
pads. Make sure there is enough
gap between the brake pads
before inserting the brake disc.
1.Speedometer cable
2.Axle holder nut (´4)
3.Wheel axle
3.Make sure the slot in the
speedometer gear unit fits over
the stopper on the front fork
outer tube.
4.Install the wheel axle and let the
motorcycle down.
5.Tighten the wheel axle the speci-
fied torque.
Tightening torque:
Wheel axle:
58 Nm (5.8 m
0kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
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1.Swingarm end bolt (´2)
EAU03105
Rear wheel removal
EW000122
w8
8
It is advisable to have a
Yamaha dealer service the
wheel.
8 8
Securely support the motorcy-
cle so there is no danger of it
falling over.1.Loosen the rear axle nut.
2.Elevate the rear wheel by placing
a suitable stand under the
engine.
3.Remove the swingarm end bolts.4.Remove the axle nut.
5.Push the wheel forward and
remove the drive chain.
6.Pull out the rear axle and remove
the wheel assembly by pulling
backward.
NOTE:
8Do not depress the brake pedal
when the disc and caliper are
separated.
8You do not have to disassemble
the chain in order to remove or
install the rear wheel.
2
1
1.Axle nut
2.Chain adjusting plate
6.Tighten the axle holder nuts to
the specified tightening torque.
Tighten the upper nuts first and
then lower ones. When tightened
in this sequence, there should be
a gap formed at the bottom of
the axle holder.
7.After tightening the holder nuts,
push down on the handlebars
several times and check if the
fork rebounds smoothly. Tightening torque:
Axle holder nut:
10 Nm (1.0 m
0kg)1
1.Gap
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