2000 YAMAHA TW125 service

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INSTRUMENT AND CONTROL FUNCTIONS
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EAU01343Rear shock absorberEAU00315
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This shock absorber contains high-
ly 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
improper handling.
8Do not tamper with or
attempt to open the cylinder
assembly.
8Do 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 pressure.
8Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.
8Take your shock absorber to a
Yamaha dealer for any service.
EAU00320Rear carrierEW000032
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Do not exceed the load limit of
3 kg.
1. Rear carrier
EAU01493Luggage strap holders
There are four luggage strap hold-
ers below the rear carrier.
1. Luggage strap (´4)
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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.
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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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NOTE:
If you do not have necessary tools
required during a service opera-
tion, take your motorcycle to a
Yamaha dealer for service.
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Modifications to this motorcycle
not approved by Yamaha may
cause loss of performance, and
render it unsafe for use. Consult a
Yamaha dealer before attempting
any changes.
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*: Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer.
EAU02970
NOTE:
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake system
8When disassembling the master cylinder or caliper, always replace the brake fluid. Check the brake fluid
level regularly and fill as required.
8Replace the oil seals on the inner parts of the master cylinder and caliper every two years.
8Replace the brake hoses every four years or if cracked or damaged.
Every Every
6,000 km 12,000 km
No. ITEM CHECKS AND MAINTENANCE JOBSINITIAL or or
1,000 km 6 months 12 months
(Whichever (Whichever
comes first) comes first)
21 * Carburetor9Check engine idling speed and starter operation.
ÖÖÖ
9Adjust if necessary.
9Check oil level and vehicle for oil leakage.
22 Engine oil9Correct if necessary.ÖÖÖ
9Change. (Warm engine before draining.)
23Engine oil filter element9Clean or replace if necessary.ÖÖ
24 * Engine oil strainer9Clean or replace if necessary.ÖÖ
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EAU00629Carburetor adjustment
The carburetor is a vital part of the
engine and requires very sophisti-
cated adjustment. Most adjust-
ments should be left to a Yamaha
dealer who has the professional
knowledge and experience to do
so. However, the following may be
serviced by the owner as part of
routine maintenance.
EC000094
cC
The carburetor was set at the
Yamaha factory after many tests. If
the settings are changed, poor
engine performance and damage
may result.
EAU01168Idle speed adjustment
NOTE:
A diagnostic tachometer must be
used for this procedure.
1. Attach the tachometer. Start
the engine and warm it up for
a few minutes at approximate-
ly 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 bto decrease engine
speed.
NOTE:
If the specified idle speed cannot
be obtained by performing the
above adjustment, consult a
Yamaha dealer.
1. Throttle stop screw
1
ab
Standard idle speed:
1,300 ~ 1,500 r/min
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EAU00634Throttle cable free play
adjustment
NOTE:
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.
1. Adjusting nut
2. Locknut
c. Free play
1. Loosen the locknut.
2. Turn the adjusting nut in direc-
tion ato increase free play
and in direction bto decrease
free play.
3. Tighten the locknut.
EAU00637Valve clearance adjustment
The correct valve clearance
changes with use, resulting in
improper fuel/air supply or engine
noise. To prevent this, the valve
clearance must be adjusted regu-
larly. This adjustment however,
should be left to a professional
Yamaha service technician.
1
2a
bc
Free play:
3 ~ 5 mm
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EAU00652Tires
To ensure maximum performance,
long service and safe operation,
note the following:
Tire air pressure
Always check and adjust the tire
pressure before operating the
motorcycle.
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Tire inflation pressure should be
checked and adjusted when the
temperature of the tire equals the
ambient air temperature. Tire infla-
tion pressure must be adjusted
according to total weight of cargo,
rider, passenger, and accessories
(fairing, saddlebags, etc. if
approved for this model), and vehi-
cle speed.
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Proper loading of your motorcycle
is important for several character-
istics of your motorcycle, such as
handling, braking, performance
and safety. Do not carry loosely
packed items that can shift.
Securely pack your heaviest items
close to the center of the motorcy-
cle, and distribute the weight
evenly from side to side. Properly
adjust the suspension for your
load, and check the condition and
pressure of your tires. NEVER
OVERLOAD YOUR MOTORCYCLE.
Make sure the total weight of the
cargo, rider, passenger, and acces-
sories (fairing, saddlebags, etc. if
approved for this model) does not
exceed the maximum load of the
motorcycle. Operation of an over-
loaded motorcycle could cause tire
damage, an accident, or even
injury.
* Load is the total weight of cargo, rider, passen-
ger and accessories.
Maximum load* 180 kg
Cold tire pressure Front Rear
150 kPa 150 kPa
Up to 80 kg (1.50 kg/cm
2, (1.50 kg/cm2,1.50 bar) 1.50 bar)
80 kg load -150 kPa 175 kPa
Maximum load*(1.50 kg/cm
2, (1.75 kg/cm2,1.50 bar) 1.75 bar)
125 kPa 125 kPa
Off-road riding (1.25 kg/cm
2, (1.25 kg/cm2,
1.25 bar) 1.25 bar)
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EAU00681
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8Operating the motorcycle with
excessively worn tires
decrease riding stability and
can lead to loss of control.
Have excessively worn tires
replaced by a Yamaha dealer
immediately. Brakes, tires, and
related wheel parts replace-
ment should be left to a
Yamaha Service Technician.
8Patching a punctured tube is
not recommended. If it is
absolutely necessary to do so,
use great care and replace the
tube as soon as possible with
a good quality replacement.
EAU00685
Wheels
To ensure maximum performance,
long service, and safe operation,
note the following:
8Always inspect the wheels
before a ride. Check for cracks,
bends or warpage of the
wheel. Be sure the spokes are
tight and undamaged. If any
abnormal condition exists in a
wheel, consult a Yamaha deal-
er. Do not attempt even small
repairs to the wheel. If a wheel
is deformed or cracked, it must
be replaced.
8Tires and wheels should be
balanced whenever either one
is changed or replaced. Failure
to have a wheel balanced can
result in poor performance,
adverse handling characteris-
tics, and shortened tire life.8Ride at moderate speeds after
changing a tire since the tire
surface must first be broken in
for it to develop its optimal
characteristics.
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