2000 YAMAHA TW125 torque

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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 condition possible. Safety
is an obligation of the motorcycle
owner. The maintenance and lubri-
cation schedule chart should be
considered strictly as a guide to
general maintenance and lubrica-
tion intervals. YOU MUST TAKE
INTO CONSIDERATION THAT
WEATHER, TERRAIN, GEOGRAPHI-
CAL LOCATIONS, AND A VARIETY
OF INDIVIDUAL USES ALL TEND
TO DEMAND THAT EACH OWNER
ALTER THIS TIME SCHEDULE TO
SHORTER INTERVALS TO MATCH
THE ENVIRONMENT. The most
important points of motorcycle
inspection, adjustment, and lubri-
cation are explained in the follow-
ing pages.
EW000060
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If you are not familiar with motor-
cycle service, this work should be
done by a Yamaha dealer.
1
EAU01175
Tool kit
The tool kit is located behind panel
B. (See page 6-7 for panel removal
and installation procedures.) The
tools provided in the owner’s tool kit
are to assist you in the performance
of periodic maintenance. However,
some other tools such as a torque
wrench are also necessary to per-
form the maintenance correctly.
The 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.
1. Tool kit
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1
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 tight-
en it to the specified torque.
1. Spark plug gap
NOTE:
If a torque wrench is not available
when you are installing a spark
plug, a good estimate of the cor-
rect 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.
EAU00517*
Engine oil
Oil level measurement
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 posi-
tioned straight up when checking
the oil level. A slight tilt toward the
side can result in false readings.
Spark plug gap:
0.6 ~ 0.7 mm
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kg)
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EC000070
cC
When removing the oil drain bolt,
the O-ring, compression spring,
and oil strainer will fall out. Take
care not to lose these parts.
1. Strainer
2. Compression spring
3. O-ring
NOTE:
The oil filter cover is secured by
two screws and a drain bolt.
Remove the drain bolt to drain the
filter cavity.
1. Bolts (´3)
2. Engine oil drain bolt
4. Remove the filter cover screws
and the oil filter cover.
5. Remove the oil filter element
and O-ring.
6. Clean the oil filter and strainer
with solvent. Replace if neces-
sary.
7. Check the O-rings. If damaged,
replace.
8. Install the filter cover, screws
and drain bolts. Tighten the
drain bolts to the specified
tightening torques.
NOTE:
Make sure the O-ring is seated
properly.
1. Oil filter element
2. O-ring
12 3
1 21
2
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EAU01501*Air filter
The air filter should be cleaned at
the specified intervals. It should be
cleaned more frequently when rid-
ing in unusually wet or dusty
areas.
Air filter element cleaning
1. Remove panel A. (See page
6-6 for removal and installa-
tion procedures.)
2. Remove the air filter case fit-
ting screws and the filter case
cover.
1. Air filter case cover
2. Screw (´4)EC000066
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8Do not put in any chemical
additives. Engine oil also lubri-
cates the clutch and additives
could cause clutch slippage.
8Be sure no foreign material
enters the crankcase.
10. Start the engine and warm up
for a few minutes. While
warming up, check for oil leak-
age. If oil leakage is found,
stop the engine immediately
and check for the cause.
EC000071
cC
Before reinstalling the oil drain
bolt, do not forget to install the O-
ring, compression spring, and oil
strainer in position.
9. Fill the engine with oil. Install
the oil filler cap and tighten. Tightening torque:
Drain bolt:
43 Nm (4.3 m·kg)
Filter cover screw:
7.0 Nm (0.7 m·kg)
Drain bolt (filter cover):
10 Nm (1.0 m·kg)
Recommended oil:
See page 8-1.
Total amount:
1.3 L
Periodic oil change:
1.0 L
With oil filter replacement:
1.1 L
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EC000096
cC
Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits.
4. Tighten the wheel axle nut to
the specified torque.
5. Adjust the brake pedal free
play.
EW000103
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Check the operation of the brake
light after adjusting the rear brake.
EAU01106*Drive chain lubrication
The 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 regular-
ly. This service is especially neces-
sary when riding in dusty areas.
The drive chain should be lubri-
cated every 500 km. First, remove
all dirt and mud from the chain
with a brush or cloth. Then, spray
any of the many brands of spray-
type chain lubricant between
both rows of side plates and on
all center rollers.
To clean the chain thoroughly,
remove it from the motorcycle,
dip it in solvent, and clean out as
much dirt as possible. Then, take
the chain out of the solvent to
dry it, and immediately lubricate
it to prevent it from rusting.
EC000097
cC
Be sure to oil the chain after wash-
ing the motorcycle or riding in the
rain.
Tightening torque:
Wheel axle nut:
90 Nm (9.0 m·kg)
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EAU01495Front wheel installation
1. Install the speedometer gear
unit housing into the wheel
hub. Make sure the projections
are meshed into the slots.
2. Lift up the wheel between the
front fork legs. Make sure that
there is enough gap between
the brake pads before inserting
the brake disc and that the slot
in the speedometer gear unit
housing fits over the stopper
on the front fork outer tube.3. Install the wheel axle and axle
nut. Then, let the motorcycle
down.
4. Tighten the axle nut to the
specified torque.
5. Install the speedometer cable.EAU01496Rear wheel removalEW000122
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8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Loosen the wheel axle nut.
2. Remove the brake adjusting
nut and brake rod from the
brake cam lever.
1. Wheel axle nut
2. Chain adjusting plate
3. Brake adjusting nut
4. Brake rod
21
a
b
34
Tightening torque:
Axle nut:
90 Nm (9.0 m·kg)
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9 3. Turn the chain adjusting plates
on each side fully in direction
b.
4. Elevate the rear wheel.
5. Remove the axle nut.
6. Pull out the rear axle.
7. Push the wheel forward and
remove the drive chain.
8. Remove the wheel assembly.
EAU01497Rear wheel installation
1. Install the wheel assembly and
insert the axle from the left-
hand side. Be sure that the
chain adjusting plates are
installed with the punched side
outward and the slot in the
brake shoe plate fits over the
stopper on the swingarm.
2. Install and adjust the drive
chain. (See page 6-24 for
details about adjusting the
drive chain slack.)
3. Install the axle nut and let the
motorcycle down.4. Tighten the axle nut to the
specified torque.
5. Insert the brake rod into the
brake cam lever and install the
brake pedal free play adjusting
nut.
6. Adjust the rear brake pedal
free play. (See page 6-20.)EW000103
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Check the operation of the brake
light after adjusting the rear brake.
Tightening torque:
Axle nut:
90 Nm (9.0 m·kg)
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SPECIFICATIONS
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EAU01064HOW TO USE THE CONVERSION TABLE
All specification data in this manual are listed in SI
and METRIC UNITS.
Use this table to convert METRIC unit data to
IMPERIAL unit data.
Ex.
METRIC MULTIPLIER IMPERIAL
** mm´0.03937 = ** in
2 mm´0.03937 = 0.08 inMETRIC TO IMPERIAL
Metric unit Multiplier Imperial unit
m • kg 7.233 ft • lb
Torquem • kg 86.794 in• lb
cm • kg 0.0723 ft • lb
cm • kg 0.8679 in • lb
Weightkg 2.205 lb
g 0.03527 oz
Speed km/hr 0.6214 mph
km 0.6214 mi
m 3.281 ft
Distance m 1.094 yd
cm 0.3937 in
mm 0.03937 in
cc (cm3) 0.03527 oz (IMP liq.)
Volume/ cc (cm3) 0.06102 cu • in
Capacity lt (liter) 0.8799 qt (IMP liq.)
lt (liter) 0.2199 gal (IMP liq.)
kg/mm 55.997 lb/in
Misc. kg/cm
214.2234 psi (lb/in2)Centigrade(°C)9/5 + 32Fahrenheit(°F)
CONVERSION TABLE
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