Classic Cycles Technical Resources
3
SPECIFICATIONS
90 cc
*Engine:
(1) Type: 2-stroke. Single Cylinder
(2) Piston Displacement: 88 c.c. (5.39 cu-inch)
(3) Bore & Stroke: 50 mm x 45 mm (1.97 x 1.77 inch)
(4) Compression Ratio: 6.8 : 1
(5) Max. Brake H.P. 7.8 HP/7000 rpm. (8.8 HP/8000 - 90 Spt)
(6) Max. Torque: 0.85 kg-m/5000 rpm
(7) Air Intake System: Rotary disc valve
(8) Starting System: Kick Starter
(9) Charging System: A.C. Magneto
(10) Ignition System: Flywheel Magneto
(11) Ignition Timing: 21 degrees before T.D.C.
(12) Spark Plug: N.G.K. B-7H
(13) Carburetor: AMAL Type, VM 15SC (VM 17SC-90 Spt)
(14) Fuel Mixture: Gasoline
(15) Transmission Oil: 0.6 litre (0.158 US gal.) in transmission
SAE #30 (summer); SAE #20 (winter)
SAE #10W30 in all seasons
*Performance:
(1) Max. Speed: 95km/h(60mph) (105 kh/h—65 mph—90 Spt)
(2) Climbing Gradient: 1 in 3
(3) Fuel Consumption: 75 km/L (177 mpg/20 mph) at 30 km/h on paved
flat test road
(4) Min. Turning Radius: 1.8 m (70.8 inch)
(5) Acceleration: 13.0 seconds (0-200 m) (12.0Sec—90 Spt)
(6) Braking Distance: 6 m at 35 km/h (20 feet, at 22 mph)
* Frame Suspension:
(1) Frame Type: Pressed Steel, Backbone Type
(2) Front Suspension: Telescopic Fork with Hydraulic Damper
(3) Rear Suspension: Swinging Arm with Hydraulic Damper
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