2009 YAMAHA T105 ignition

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU47821
(on)
All electrical circuits are supplied with
power, the meter lighting, taillight, li-
cense plate light and auxiliary lights
come on, and the engine can be start-
ed. The key cannot be removed.
TIPThe headlight comes on automatically
when the engine is started and stays onuntil the key is turned to“”.
EAU47791
(off)
All electrical systems are off. The key
can be removed.WARNING
EWA15350
Never turn the key to“” or“”
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result inloss of control or an accident.
EAU47801
(lock)
The steering is locked, and all electrical
systems are off. The key can be re-
moved.To lock the steering
1. Turn the handlebars all the way to
the left.
2. Push the key in from the“” posi-
tion, release it, and then turn it
to“”.
3. Remove the key.1. Push.
2. Release.
3. Turn.
123
U40BE0E0.book Page 1 Wednesday, January 7, 2009 10:05 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU13212
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU13320
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
1. Fuel tank filler tube
2. Fuel level
12
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
4.2 L (1.11 US gal, 0.92 Imp.gal)
Fuel reserve amount:
1.0 L (0.26 US gal, 0.22 Imp.gal)
U40BE0E0.book Page 6 Wednesday, January 7, 2009 10:05 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
6
TIPWhen tightening the axle nut, hold the
wheel axle with a wrench to keep it fromturning.
8. Insert a new cotter pin.
9. Adjust the brake pedal free play.
(See page 6-15.)
WARNING
EWA10660
After adjusting the brake pedal free
play, check the operation of thebrake light.
10. Install the drive chain case by in-
stalling the screws.
EAU25851
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
Tightening torques:
Brake torque rod nut:
19 Nm (1.9 m·kgf, 13 ft·lbf)
Axle nut:
60 Nm (6.0 m·kgf, 43 ft·lbf)
U40BE0E0.book Page 35 Wednesday, January 7, 2009 10:05 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
EAU25902
Troubleshooting chart
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U40BE0E0.book Page 36 Wednesday, January 7, 2009 10:05 AM

SPECIFICATIONS
8-2
8
4th:
23/21 (1.095)
Chassis:Frame type:
Steel tube underbone
Caster angle:
26.92 °
Trail:
79.0 mm (3.11 in)Front tire:Type:
With tube
Size:
70/90-17M/C 38P
Manufacturer/model:
DUNLOPRear tire:Type:
With tube
Size:
80/90-17M/C 50P
Manufacturer/model:
DUNLOPLoading:Maximum load:
159 kg (351 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
200 kPa (2.00 kgf/cm², 29 psi)Rear:
225 kPa (2.25 kgf/cm², 33 psi)
Loading condition:
90–159 kg (198–351 lb)
Front:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
270 kPa (2.70 kgf/cm², 39 psi)
Front wheel:Wheel type:
Cast wheel
Rim size:
17x1.40Rear wheel:Wheel type:
Cast wheel
Rim size:
17x1.60Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 3 or 4Rear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:
Telescopic forkSpring/shock absorber type:
Coil spring/oil damper
Wheel travel:
95.0 mm (3.74 in)
Rear suspension:Type:
Swingarm
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
76.0 mm (2.99 in)Electrical system:Ignition system:
DC. CDI
Charging system:
AC magnetoBattery:Model:
MTX7L-BS
Voltage, capacity:
12 V, 6.0 AhHeadlight:Bulb type:
IncandescenceBulb voltage, wattage × quantity:Headlight:
12 V, 35 W/35 W × 1
Tail/brake light:
12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 21.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
U40BE0E0.book Page 2 Wednesday, January 7, 2009 10:05 AM