Page 50 of 88

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6
EW000079
WARNING
_ l
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.
l
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.
_
Tire information
This motorcycle is equipped with tube
tires.
EW000078
WARNING
_ l
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.
l
After extensive tests, only the
tires listed below have been ap-
proved for this model by
Yamaha Motor Co., Ltd.
_CE-10EEAU00681
WARNING
_ l
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.
l
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.
l
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.
_
FRONT
Manufacturer Size Model
CHENG SHIN 80/100-18 47P C-916
INOUE 80/100-18 47PMARBELLA
NF27
REAR
Manufacturer Size Model
CHENG SHIN 130/90-15 M/C 66P C-915
INOUE 130/90-15 M/C 66PMARBELLA
NR31
E_5kr.book Page 18 Tuesday, September 12, 2000 4:46 PM
Page 80 of 88
SPECIFICATIONS
8-2
8
Air filterDry type element
Fuel
Type Regular unleaded gasoline
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
Manufacturer/
modelCHENG SHIN / C-916
INOUE / MARBELLA NF27
Rear
Type Tube tire
Size 130/90-15 M/C 66P
Manufacturer/
modelCHENG SHIN / C-915
INOUE / MARBELLA NR31
E_5kr.book Page 2 Tuesday, September 12, 2000 4:46 PM
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 kg/cm
2, 1.75 bar)
Rear 200 kPa (2.00 kg/cm2, 2.00 bar)
90 kg–maximum*
Front 225 kPa (2.25 kg/cm2, 2.25 bar)
Rear 225 kPa (2.25 kg/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 Tuesday, September 12, 2000 4:46 PM