Page 50 of 88
PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.
CE-08ENOTE:_ The tire tread depth limits may differ
from country to country. Always comply
with the local regulations. _
Tire information
This motorcycle is equipped with tube
tires.
EW000078
WARNING
_
The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motor-
cycle cannot be guaranteed.
After extensive tests, only the
tires listed below have been ap-
proved for this model by
Yamaha Motor Co., Ltd.
_CE-10EEAU00681
WARNING
_
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
motorcycle with excessively
worn tires decreases riding sta-
bility 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.
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.
_
1. Tire sidewall
a. Tire tread depthMinimum tire tread depth
(front and rear)1.6 mm
FRONT
Manufacturer Size Model
CHENG SHIN80/100-18 47P
C-916
80/100-18 M/C 47P
IRC80/100-18 47P
MARBELLA
NF27
80/100-18 M/C 47P
REAR
Manufacturer Size Model
CHENG SHIN 130/90-15 M/C 66P C-915
IRC 130/90-15 M/C 66PMARBELLA
NR31
E_5kr.book Page 18 Friday, December 14, 2001 11:33 AM
Page 80 of 88
SPECIFICATIONS
8-2
8
Air filterDry element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 11 L
Fuel reserve amount 3.4 L
Carburetor
Manufacturer MIKUNI
Model × quantity BDS26 × 1
Spark plug
Manufacturer/model NGK / CR6HSA or
DENSO / U20FSR-U
Gap 0.6–0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 3.130
Secondary reduction system Chain drive
Secondary reduction ratio 2.800
Number of drive chain
sprocket teeth (front/rear) 20/56
Transmission type Constant-mesh 5-speed
Operation Left footGear ratio
1st 2.643
2nd 1.684
3rd 1.261
4th 1.000
5th 0.821
Chassis
Frame type Double cradle
Caster angle 35°
Trail 135 mm
Tires
Fr o n t
Type Tube tire
Size 80/100-18 47P
Size 80/100-18 M/C 47P
Manufacturer/
modelCHENG SHIN / C-916
IRC / MARBELLA NF27
Rear
Type Tube tire
Size 130/90-15 M/C 66P
Manufacturer/
modelCHENG SHIN / C-915
IRC / MARBELLA NR31
E_5kr.book Page 2 Friday, December 14, 2001 11:33 AM
Page 81 of 88
SPECIFICATIONS
8-3
8
Maximum load* 180 kg
Tire air pressure (measured
on cold tires)
Up to 90 kg*
Front 175 kPa (1.75 kgf/cm
2, 1.75 bar)
Rear 200 kPa (2.00 kgf/cm2, 2.00 bar)
90 kg–maximum*
Front 225 kPa (2.25 kgf/cm2, 2.25 bar)
Rear 225 kPa (2.25 kgf/cm2, 2.25 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Fron t
Type Spoke wheel
Size 18 × 1.60
Rear
Type Spoke wheel
Size 15 M/C × MT 3.00
Brakes
Front
Type Single disc brake
Operation Right hand
Fluid DOT 4Rear
Type Drum brake
Operation Right foot
Suspension
Front Telescopic fork
Rear Swingarm
Spring/shock absorber
Front Coil spring / oil damper
Rear Coil spring / oil damper
Wheel travel
Front 140 mm
Rear 100 mm
Electrical system
Ignition system T.C.I (digital)
Charging system
Type A.C. magneto
Standard output 14 V, 23 A @ 5,000 r/min
Battery
Model GT6B-3
Voltage, capacity 12 V, 6 Ah
Headlight typeQuartz bulb (halogen)
E_5kr.book Page 3 Friday, December 14, 2001 11:33 AM
