2006 YAMAHA T135 transmission

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU11003
Indicator and warning lights
EAU11020
Turn signal indicator light “”
This indicator light flashes when the
turn signal switch is pushed to the left or
right.
EAU11060
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU37611
Gear position indicator lights “1 ”
“ 2 ” “ 3 ”, and “4 ”
The respective indicator light comes on
when the transmission is in the 1st,
2nd, 3rd or 4th gear position.
EAU11080
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU37631
Coolant temperature warning light
“”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and allow
the engine to cool.
This warning light also has a self-diag-
nosis device function for various electri-
cal circuits.

When the main switch is turned to
“ ON ” and the engine is not run-
ning, the warning light will flash if
an electrical circuit is defective. If
this occurs, have a Yamaha dealer
check the vehicle.


When the engine is running, the
warning light will come on if the en-
gine overheats or if an electrical
circuit is defective.
To determine which of the above is
occurring, stop the vehicle when it
is safe to do so, then turn the main
switch to “OFF ”, and then back to
“ ON ”.
If the warning light stays on, this in-
dicates the engine is overheating.
Keep the engine turned off and al-
low it to cool.
CAUTION:
ECA10020
Do not operate the engine if it isoverheated.
If the warning light flashes, this in-
dicates there is a defective electri-
cal circuit. Have a Yamaha dealer
check the vehicle.
The electrical circuit of the warning light
can be checked by turning the key to
“ ON ”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir- cuit.
1. Turn signal indicator light “”
2. Coolant temperature warning light “”
3. Neutral indicator light “”
4. Gear position indicator light “1” “2” “3” “4”
5. High beam indicator light “”U5YPE0E0.book Page 2 Wednesday, February 23, 2005 4:22 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU12400
Dimmer switch “ / ”
Set this switch to “” for the high
beam and to “” for the low beam.
EAU12460
Turn signal switch “ / ”
To signal a right-hand turn, push this switch to “” . To signal a le ft-hand
turn, push this swit ch to “”. When re-
leased, the swit ch returns to the center
position. To ca ncel the turn signal
lights, push the swit ch in after it has re-
tu rn ed to the center position.
EAU12500
Horn switch “”
Press this switch to sound the horn.
EAU12710
Start switch “” .
Push th is switch to crank the engine
with the starter.CAUTION:
ECA10050
See page 5-1 for star ting instruc-tions prior to starting the en gine.
EAU37460
Shift pedal The shift pedal is located on the left
side of the engine. This motorcycle is
equipped with a constant-mesh 4
speed transmission.NOTE:Use your toes to shift up and your heelto shift down.
EAU12890
Brake lever The brake lever is located at the right
handlebar grip. To apply the front
brake, pu ll the lever to wa rd the handle-
bar grip.
1. Shift pedal
1. Brake lever
U5YPE0E0.book Page 4 Wednesday, February 23, 2005 4:22 PM
EAU02948
Light switch " / "Set the switch to " " to turn on the
position light, meter lighting, taillight
an headlight also. Set the switch to " "
to turn off all the light

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15950
WARNING
EWA10270


Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible lossof control.
EAU37640
Starting and warming up a
cold engine 1. Turn the key to “ON”.
2. Shift the transmission into the neu-
tral position.NOTE:
When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-cuit.
3. Place the vehicle on the center-
stand.
WARNING
EWA14200
Before starting the engine, make
sure the transmission is in neutral
and that the vehicle is placed on thecenterstand.
4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-7.)
5. Start the engine by pushing the
start switch or by pushing the kick-
starter lever down.
NOTE:If the engine fails to start by pushing the
start switch, release the switch, wait a
few seconds, and then try again. Each
starting attempt should be as short as
possible to preserve the battery. Do not
crank the engine more than 10 seconds
on any one attempt. If the engine does
not start with the starter motor, try usingthe kickstarter.CAUTION:
ECA15170
The coolant temperature warning
light should come on when the key
is turned to “ON”, and then go off af-
ter a few seconds. If the coolant tem-
perature warning light comes on
after starting, immediately stop the
engine, and have a Yamaha dealercheck the electrical circuit.
6. After starting the engine, move the
starter (choke) back halfway.
U5YPE0E0.book Page 1 Wednesday, February 23, 2005 4:22 PM

OPERATION AND IMPORTANT RIDING POINTS
5-2
5
CAUTION:
ECA11130
For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when theengine is cold!
7. When the engine is warm, turn the
starter (choke) off.NOTE:The engine is warm when it responds
normally to the throttle with the starter(choke) turned off.
EAU16640
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
EAU37550
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc. When shifting gears, fully return the
throttle grip. The use of the shift pedal
is shown in the illustration.NOTE:The transmission cannot be shifted
from 4th gear to neutral when the en-gine is running.CAUTION:
ECA15180


Make sure that the transmission
is completely shifted into gear.
1. Shift pedal
2. Neutral position
U5YPE0E0.book Page 2 Wednesday, February 23, 2005 4:22 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
EAU22720
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addition,
have the oil seals of the brake master
cylinder and caliper as well as the
brake hose replaced at the intervals
listed below or whenever they are dam-
aged or leaking.

Oil seals: Replace every two
years.


Brake hose: Replace every four
years.
EAU22760
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22791
To check the drive chain slack
1. Place the motorcycle on the cen-
terstand.
2. Shift the transmission into the neu-
tral position.
3. Spin the rear wheel several times
to locate the tightest portion of the
drive chain.
4. Measure the drive chain slack as
shown.5. If the drive chain slack is incorrect,
adjust it as follows.
EAU37691
To adjust the drive chain slack
1. Loosen the brake pedal free play
adjusting nut and the brake torque
rod nut.
2. Loosen the axle nut, then loosen
the locknut at each end of the
swingarm.
3. To tighten the drive chain, turn the
adjusting nut at each end of the
swingarm in direction (a). To loos-
1. Drive chain slack
Drive chain slack:
25.0–35.0 mm (0.98–1.38 in)
1. Brake pedal free play adjusting nut
2. Brake torque rod nut
U5YPE0E0.book Page 22 Wednesday, February 23, 2005 4:22 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:1945 mm (76.6 in)
Overall width:
705 mm (27.8 in)
Overall height: 1065 mm (41.9 in)
Seat height: 770 mm (30.3 in)
Wheelbase:
1245 mm (49.0 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 1900 mm (74.8 in)Weight:With oil and fuel:109,0 kg (240 lb)Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement: 134.4 cm ³ (8.20 cu.in)
Bore × stroke:
54.0 × 58.7 mm (2.13 × 2.31 in)
Compression ratio:
10.90 :1
Starting system: Electric starter and kickstarter Lubrication system:
Wet sump
Engine oil:Type:
SAE20W40 or SAE20W50
Recommended engine oil grade: API service SF, SG type or higher
JASO MA
Engine oil quantity: Without oil filter element replacement:
0.80 L (0.85 US qt) (0.70 Imp.qt)
With oil filter element replacement: 0.90 L (0.95 US qt) (0.79 Imp.qt)Cooling system:Coolant reservoir capacity (maximum
level) YAMAHA GENUINE COOLANT: 0.28 L (0.30 US qt) (0.25 Imp.qt)
Radiator capacity (including all routes):
0.62 L (0.66 US qt) (0.55 Imp.qt)Air filter:Air filter element:Dry elementFuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 4.0 L (1.06 US gal) (0.88 Imp.gal)Carburetor:Manufacturer:MIKUNI
Type × quantity:
VM22 x 1
Spark plug (s):Manufacturer/model: NGK CPR8EA-9/ DENSO U24EPR-9
Spark plug gap:
0.8 –0.9 mm (0.031 –0.035 in)Clutch:Clutch type:
Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction system:
Spur gear
Primary reduction ratio: 69/24 (2.875)
Secondary reduction system: Chain drive
Secondary reduction ratio:
39/15 (2.600)
Transmission type: Constant mesh 4-speed
Operation: Left foot operation
Gear ratio:
1st:34/12 (2.833)
2nd:
30/16 (1.875)
3rd: 23/17 (1.353)
4th: 23/22 (1.045)Chassis:Frame type: Diamond
U5YPE0E0.book Page 1 Wednesday, February 23, 2005 4:22 PM