2001 YAMAHA TW125 air filter
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EAU00009
TABLE OF CONTENTS
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GIVE SAFETY THE RIGHT OF WAY ..................1-1
DESCRIPTION ....................................................2-1
Left view .............................................................2-1
Right view ..........................................................2-2
Controls and instruments ...................................2-3
INSTRUMENT AND CONTROL
FUNCTIONS ........................................................3-1
Main switch ........................................................3-1
Indicator lights ....................................................3-1
Speedometer unit ..............................................3-2
Handlebar switches............................................3-2
Clutch lever ........................................................3-4
Shift pedal ..........................................................3-4
Brake lever .........................................................3-4
Brake pedal ........................................................3-5
Fuel tank cap .....................................................3-5
Fuel ....................................................................3-6
Fuel cock............................................................3-7
Starter (choke) knob Ò1Ó ...................................3-8
Steering lock ......................................................3-8
Seat ...................................................................3-9
Helmet holder.....................................................3-9
Shock absorber ................................................3-10
Carrier ..............................................................3-10
Luggage strap holders .....................................3-10Sidestand .........................................................3-11
Ignition circuit cut-off system............................3-11
PRE-OPERATION CHECKS ...............................4-1
Pre-operation check list .....................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting the engine .............................................5-1
Starting a warm engine ......................................5-2
Shifting ...............................................................5-3
Recommended shift points
(for Switzerland only) .......................................5-3
Tips for reducing fuel consumption ....................5-4
Engine break-in ..................................................5-4
Parking ...............................................................5-5
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
OwnerÕs tool kit ..................................................6-1
Periodic maintenance and lubrication chart .......6-2
Removing and installing cowling and panels .....6-5
Checking the spark plug ....................................6-7
Engine oil and oil filter element ..........................6-9
Cleaning the air filter element and
check hose .....................................................6-12
Adjusting the carburetor ...................................6-14
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2-1
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DESCRIPTION
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1. Fuel tank (page 3-5)
2. Fuel cock (page 3-7)
3. Helmet holder (page 3-9)
4. Luggage strap holders (page 3-10)5. Chain adjusting plates (page 6-26)
6. Air filter element (page 6-12)
7. Shift pedal (page 3-4)
12 3 4
5 6 7
Left view
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6-2
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00473*
Periodic maintenance and lubrication chart
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 6 12 18 24
1
*Fuel line¥ Check fuel hoses for cracks or damage.ÖÖÖÖ Ö
2 Spark plug¥ Check condition.
¥ Clean and regap.ÖÖ
¥ Replace.ÖÖ
3*Valves¥ Check valve clearance.
¥ Adjust.ÖÖÖÖ
4 Air filter element¥ Clean.ÖÖ
¥ Replace.ÖÖ
5*Battery¥ Check electrolyte level and specific gravity.
¥ Make sure that the breather hose is properly routed.ÖÖÖÖ Ö
6 Clutch¥ Check operation.
¥ Adjust.ÖÖÖÖÖ
7*Front brake¥ Check operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)ÖÖÖÖÖ Ö
¥ Replace brake pads.Whenever worn to the limit
8*Rear brake¥ Check operation and adjust brake pedal freeplay.ÖÖÖÖÖ Ö
¥ Replace brake shoes.Whenever worn to the limit
9*Brake hose¥ Check for cracks or damage.ÖÖÖÖ Ö
¥ Replace. (See NOTE on page 6-4.)Every 4 years
NOTE:
8The annual checks must be performed every year, except if kilometer-based maintenance is performed instead.
8From 30,000 km, repeat the maintenance intervals starting from 6,000 km.
8Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU03541
NOTE:
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake service
8
Regularly check and, if necessary, correct the brake fluid level.
8
Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid.
8
Replace the brake hoses every four years and if cracked or damaged.
22 Engine oil¥ Change.ÖÖÖÖÖ Ö
23 Engine oil filter element¥ Replace.ÖÖÖ
24
*Engine oil strainer¥ Clean.ÖÖÖ
25*Front and rear brake
switches¥ Check operation.ÖÖÖÖÖ Ö
26 Moving parts and cables¥ Lubricate.ÖÖÖÖ Ö
27*Lights, signals and
switches¥ Check operation.
¥ Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 6 12 18 24
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PERIODIC MAINTENANCE AND MINOR REPAIR
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93. Wait a few minutes until the oil
settles, and then check the oil
level through the check window
located at the bottom-left side of
the crankcase.
NOTE:
The engine oil should be between the
minimum and maximum level marks.4. If the engine oil is below the
minimum level mark, add suffi-
cient oil of the recommended
type to raise it to the correct
level.1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
To change the engine oil (with or
without oil filter element cleaning)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the
engine to collect the used oil.
3. Remove the engine oil filler cap
and drain bolt to drain the oil
from the crankcase.1. Engine oil filler cap
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3 1
EAU03564
Engine oil and oil filter
elementThe engine oil level should be
checked before each ride. In addition,
the oil must be changed and the oil
filter element cleaned at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the engine oil level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:
Make sure that the motorcycle is
positioned straight up when checking
the oil level. A slight tilt to the side
can result in a false reading.2. Start the engine, warm it up for
several minutes, and then turn it
off.
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1. Engine oil drain bolt
1
EC000070
cCWhen removing the engine oil
drain bolt, the O-ring, spring, and
oil strainer will fall out. Take care
not to lose these parts. 1. Strainer
2. Compression spring
3. O-ring
4. Remove the oil filter element
drain bolt to drain the oil from the
oil filter element.NOTE:
Skip steps 5Ð9 if the oil filter element
is not being cleaned.1. Oil filter element cover
2. Screw (´2)
3. Oil filter element drain bolt
12 3
1
2
3
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912. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil
filler cap. 9. Install the oil filter element cover
by installing the screws and the
drain bolt. Then tightening them
to the specified torque.
NOTE:
Make sure that the O-rings are prop-
erly seated.10. Clean the oil strainer with sol-
vent, and then check it for dam-
age and replace it if necessary.
11. Install the oil strainer, spring, O-
ring and engine oil drain bolt,
and then tighten the drain bolt to
the specified torque.Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 mákg)
5. Remove the oil filter element
cover by removing the screws.
6. Remove the oil filter element and
O-rings.
7. Check the O-rings for damage
and replace it if necessary.
8. Clean the oil filter element with
solvent, and then install it. NOTE:
Check the oil filter element for dam-
age and replace it if necessary.1. Oil filter element
2. O-ring (´2)
1 2
2
Tightening torques:
Oil filter element cover screw:
7.0 Nm (0.7 mákg)
Oil filter element drain bolt:
10 Nm (1.0 mákg)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter element
removal:
1.0 L
With oil filter element removal:
1.1 L
Total amount (dry engine):
1.3 L
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EAU03562
Cleaning the air filter
element and check hoseThe air filter element should be
cleaned at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean the air filter element
more frequently if you are riding in
unusually wet or dusty areas. In addi-
tion, the air filter check hose must be
frequently checked and cleaned if
necessary.
To clean the air filter element
1. Remove panel A. (See page 6-6
for panel removal and installation
procedures.)
1. Air filter case cover
2. Screw (´4)
EC000072
cC8In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives
with the oil or use oils of a
higher grade than ÒCDÓ. In
addition, do not use oils
labeled ÒENERGY CONSERV-
ING
IIÓ or higher.
8Make sure that no foreign
material enters the crankcase.
13. Start the engine, and then let it
idle for several minutes while
checking it for oil leakage. If oil is
leaking, immediately turn the
engine off and check for the
cause.
14. Turn the engine off, and then
check the oil level and correct it if
necessary.2. Remove the air filter case cover
by removing the screws.
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