Yamaha RS90K Manuel D'atelier page 734

Model
Transmission:
Primary reduction system
Primary reduction ratio
Clutch type
Secondary reduction system
Secondary reduction ratio
Reverse system
Chassis:
Frame type
Caster
Ski stance (center to center)
Suspension:
Front suspension type
Rear suspension type
Track:
Track type
Track width
Length on ground
Track deflection mm/100 N (10 kg, 22 lb)
Brake:
Brake type
Operation method
Electrical:
Ignition system
Generator system
Headlight bulb type:
Bulb wattage × Quantity:
Headlight
Tail/Brake light
Meter light
High beam indicator light
Information indicator light
Low coolant temperature light
GENERAL SPECIFICATIONS
RS90/RS90R/RSG90/RS90M/RST90/RST90TF
V-Belt
3.8 ~ 1 : 1
Automatic centrifugal engagement
Chain
1.73 (38/22) (RS90/RS90R)
1.77 (39/22) (RSG90/RST90 "USA/Canada")
2.00 (40/20) (RS90M)
1.95 (39/20) (RST90 "Europe"/RST90TF)
No (RS90/RS90M)
Yes (RS90R/RSG90/RST90/RST90TF)
Monocoque
23.0°
1,086 mm (42.8 in) (RS90/RS90R/RSG90/RST90/
RST90TF)
980 mm (38.6 in) (RS90M)
Double wishbone
Slide rail suspension
Internal drive type
381.0 mm (15.00 in)
723.0 mm (28.46 in) (RS90/RS90R)
946.0 mm (37.24 in) (RSG90)
759.0 mm (29.88 in) (RS90M)
985.0 mm (38.78 in) (RST90)
1,074.0 mm (42.28 in) (RST90TF)
30 ~ 35 mm (1.18 ~ 1.38 in) (RS90/RS90R/RS90M/RST90/
RST90TF)
25 ~ 30 mm (0.98 ~ 1.18 in) (RSG90)
Caliper type disc brake
Handlebar, left hand operated
Transistorized coil ignition
A.C. magneto
Halogen bulb
12 V, 60 W/55 W × 2
12 V, 5 W/21 W × 2
14 V, 50 mA × 6
14 V, 80 mA
14 V, 80 mA
14 V, 80 mA
9-3
SPEC