Engine; Chassis - Yamaha RS90NL Owner's Manual

ESU00230

Engine

CS-02E
Type
Cylinder arrangement
Displacement
Bore × Stroke
Idle speed
Engine oil type
Carburetor type
Fuel
Starting system
ESU00231

Chassis

CS-03E
Drive track and suspension:
Track
Width
Track deflection
Length on ground
Suspension type
Drive sprocket
RS90N/RS90R/RS90NR/RS90M/
RS90GT/RSG90
Liquid cooled 4-stroke, 12 valves
Parallel 3-cylinder
3
973 cm
79.0 × 66.2 mm (3.12 × 2.61 in)
1,400 ± 100 r/min
API SE, SF, SG or higher
SAE 0W-30
KEIHIN, CVK40 × 3
Unleaded gasoline
Pump octane
Electric starter
RS90N/RS90R/RS90NR/RS90M/
RS90GT/RSG90
Molded rubber, fiber glass rod reinforced
381 mm (15.0 in)
30–35 mm (1.18–1.38 in)/
100 N (10 kg, 22 lb): RS90N/RS90R/
25–30 mm (0.98–1.18 in)/
100 N (10 kg, 22 lb): RSG90
723 mm (28.5 in): RS90N/RS90NR
768 mm (30.2 in): RS90R/RS90GT
1,068 mm (42.0 in):RS90M
960 mm (37.8 in): RSG90
Slide Rail Suspension
Quadruple polyethylene, 9 teeth:
RS90N/RS90R/RS90NR/RS90GT/
RSG90
Quadruple polyethylene, 8 teeth:
RS90M
11-2
R + M
; 88 or higher
2
RS90NR/RS90M/
RS90GT