Yamaha SR500E 1978 Service Manual page 91

S u s p e n s i o n
Front Rear
Type Telescropic f o r k Swing arm (Gas cushion)
Travel 195 m m 110 m m
Spring length free 445.5 m m 269 m m
Spring length installed 420.5 m m 264 m m
Kl = 1.55 k g / m m (0 ~ 70 mm)
Spring constant K = 0_35 k g / m m (0 ~ 195 mm)
K2 = 2.25 k g / m m (20 ~ 110 m m )
Spring wear l i m i t (Free) - -
Number of coils 55.5 turns 12.5 turns
Diameter of coil 26.3 m m 65.5 m m
Diameter of wire 3.8 m m 7.5 m m
I
Caster 29o50 ' Trail 126 m m
Rear swing arm nominal length 418 m m
S u s p e n s i o n
Avant i Arrière
Fourche oscillante
Type Fourche téléscopique (coussin de Gaz)
Déplacement 195 mm 110 mm
Longueur du ressort libre 445,5 mm 269 mm
Longueur du ressort installé 420,5 mm 264 mm
K1 = 1,55 kg/mm (0 ~ 70 mm)
Constante du ressort K = 0,35 kg/mm (0 ~ 195 mm) K2 = 2,55 kg/cm (70 ~ 110 mm)
Limite d'usure du ressort
(libre)
Nombre de spires 55, 5 tours 12,5 tours
Diamètre des spires 26,3 mm 65, 5 mm
Diamètre du fil 3,8 mm 1,5 mm
Angle de chasse 29050 ' Chasse 126 mm
Longueur nominale de la fourche oscillante arrière 418 mm
W h e e l s / T i r e s
Mfr/Size/Tread type
Tire pressure
Rim size/Material/Type
Spoke diameter
Front Rear
B S / 3 . 0 0 - 2 1 - 4 P R / T r a i l wing B S / 4 . 0 0 - 1 8 - 4 P R / T r a i l wing
1.3 kg/cm 2 : Normal riding 1_5 kg/cm 2 : Normal riding
1.5 kg/cm 2 : Continues high speed 1.8 kg/cm 2 : Continues high speed
riding riding
1 . 6 0 - 2 1 / A l u m i n u m / E section 1 . 8 5 - 1 8 / A l u m i n u m / E section
3 . 2 ~ 4 . 0 m m
L: 224.5 m m
i R: 239.0 m m
b
3 . 5 ~ 4 . 0 m m
Spoke length (Inside) 162.5 m m
S p o k e l e n g t h (Outside) ! L: 224.0 m m 161.5 m m
R 241.0 m m
Runout l i m i t (Vertical) 2.0 m m
2.0 mm
I
i
I 2.0 m m
Runout l i m i t (Horizontal)
2 . 0 m m
- - 1 3 - -