Page 35 of 106

INSTRUMENT AND CONTROL FUNCTIONS
3-21
3
EAU49415
Traction control system The traction control system helps main-
tain traction when accelerating on slip-
pery surfaces, such as unpaved or wet
roads. If sensors detect that the rear
wheel is starting to slip (uncontrolled
spinning), the traction control system
assists by regulating engine power as
needed until traction is restored. The
traction control system indicator/warn-
ing light flashes to let the rider know
that traction control has engaged.TIPThe rider may also notice slight chang-
es in engine and exhaust sounds when
the traction control system is engaged.
WARNING
EWA15431
The traction control system is not a
substitute for riding appropriately
for the conditions. Traction control
cannot prevent loss of traction due
to excessive speed when entering
turns, when accelerating hard at a
sharp lean angle, or while braking,
and cannot prevent front wheel slip-
ping. As with any motorcycle, ap-proach surfaces that may be
slippery with caution and avoid es-
pecially slippery surfaces.
There are three traction control system
modes:
“
TCS ” mode “1 ”: Default mode
“TCS ” mode “2 ”: Sporty mode
This mode decreases traction con-
trol system assist, allowing the
rear wheel to spin more freely than
“ TCS ” mode “1 ”.
“TCS ” mode “Off ”: The traction
control system is turned off. The
system may also be automatically
disabled in some riding conditions
(see “Resetting ” on page 3-22).
When the key is turned to “ON ”, the
traction control system is enabled and
“ TCS ” “ 1 ” displays in the multi-function
meter.
The traction control system mode can
be changed only when the key is in the
“ ON ” position, the engine is stopped
and the vehicle is not moving.
TIPUse “TCS ” mode “ Off” to help free the
rear wheel if the motorcycle gets stuck
in mud, sand, or other soft surfaces.NOTICE
ECA16800
Use only the specified tires. (See
page 6-18.) Using different sized
tires will prevent the traction control
system from controlling tire rotation
accurately.Setting the traction control system
WARNING
EWA15440
Be sure to stop the vehicle before
making any setting changes to the
traction control system. Changing
settings while riding can distract the
operator and increase the risk of an
accident.Push the traction control system switch
on the multi-function meter for less than
one second to change between “TCS ”
modes “1 ” and “2 ”. Push the switch for
at least two seconds to select “ TCS”
mode “Off ” and turn the traction control
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Page 75 of 106

PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
6
WARNING
EWA10471
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the necessary professional knowl-
edge and experience to do so.
Ride at moderate speeds after
changing a tire since the tire
surface must first be “ broken
in ” for it to develop its optimal
characteristics.
Tire information
This motorcycle is equipped with spoke
wheels and tubeless tires with valves.
WARNING
EWA10901
The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motorcy-
cle may be different, which
could lead to an accident.
Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.
Use only the tire valves and
valve cores listed below to
avoid tire deflation during a ride.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
Front tire: Size: 110/80R19M/C 59V
Manufacturer/model: BRIDGESTONE/BW501
METZELER/TOURANCE EXP C
Rear tire: Size: 150/70R17M/C 69V
Manufacturer/model: BRIDGESTONE/BW502
METZELER/TOURANCE EXP C
FRONT and REAR: Tire air valve: TR412
Va l ve c o r e : #9100 (original)
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Page 100 of 106

SPECIFICATIONS
8-2
8
Secondary reduction system:Shaft drive
Secondary reduction ratio: 21/25 × 32/9 (2.987)
Transmission type:
Constant mesh 6-speed
Operation: Left foot operation
Gear ratio: 1st: 36/13 (2.769)
2nd: 33/16 (2.063)
3rd:
33/21 (1.571)
4th: 30/24 (1.250)
5th: 25/24 (1.042)
6th:
26/28 (0.929)Chassis:Frame type:Steel tube backbone
Caster angle:
28.00 °
Trail: 126.0 mm (4.96 in)Front tire:Type:
Tubeless
Size: 110/80R19M/C 59V Manufacturer/model:
BRIDGESTONE/BW501
Manufacturer/model: METZELER/TOURANCE EXP C
Rear tire:Type:Tubeless
Size: 150/70R17M/C 69V
Manufacturer/model:
BRIDGESTONE/BW502
Manufacturer/model: METZELER/TOURANCE EXP CLoading:Maximum load:
209 kg (461 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: 225 kPa (2.25 kgf/cm ², 33 psi)
Rear:
250 kPa (2.50 kgf/cm ², 36 psi)
Loading condition: 90–209 kg (198 –461 lb)
Front: 225 kPa (2.25 kgf/cm ², 33 psi)
Rear:
290 kPa (2.90 kgf/cm ², 42 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
19M/C x MT2.50Rear wheel:Wheel type:Spoke wheel
Rim size:
17M/C x MT4.00Front brake:Type:Dual disc brake
Operation:
Right hand operation
Recommended fluid: DOT 4Rear brake:Type:
Single disc brake
Operation: Right foot operation
Recommended fluid: DOT 4Front suspension:Type:Telescopic fork
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
190.0 mm (7.48 in)Rear suspension:Type:Swingarm (link suspension)
U23PE0E0.book Page 2 Wednesday, March 3, 2010 2:29 PM