Honda Sport 90

Honda Sport 90
Manufacturer	Honda
Also called	Honda S90, Honda CS90, Honda Sport 90, Honda Super 90, Honda Benly 90, S90Z.
Production	1964-1969
Engine	89.6 cc (5.47 cu in) SOHC 2-valve 4-stroke, air-cooled
Transmission	manual 4-speed; chain final drive
Suspension	Front: telescopic ; Rear: Swingarm
Brakes	Front and Rear, Internal Expansion Type (drum)
Tires	front and rear 2.50-18, 4 ply
Wheelbase	1.195 m (3 ft 11.0 in)
Dimensions	L: 1.89 m (6 ft 2 in); W: 0.65 m (2 ft 2 in); H: 0.98 m (3 ft 3 in);
Fuel capacity	7 l (1.5 imp gal; 1.8 US gal)

The Honda Sport 90, Super 90, or S90, is a 90 cc Honda motorcycle ultra lightweight new design motorcycle, the engine based on the Honda Super Cub, and was made from 1964 to 1969. The motorcycle continued in production In various forms for example the S90Z in Indonesia. [1]

The single cylinder OHC air-cooled engine links to a four speed transmission. It has a hand clutch, and shifting is "1 down, 3 up," with neutral in between 1st and 2nd. There is no tachometer but the speedometer indicates speed ranges for each gear. The top speed was claimed to be 64 mph, and the engine is rated at 8 horsepower.

The engine holds a quart of oil and has an internal centrifugal oil filter, and the exhaust has a removable baffle. A metal cylinder behind the carburetor holds the air filter. Tools go under the seat in their own compartment. [2][3]

The frame is Pressed Steel rather than Tubular steel to minimize weight and the bike is fitted with telescopic front forks for improved road holding.[4] The motorcycle was not intended for off road use, as evidenced by the narrow handle bars and street tires; it included no accessories for such travel. 90 miles per US gallon (38 km/l) was not hard to attain, even with spirited riding.

There are a variety of models including the Honda S90, CS90, and the Benly 90. The date of manufacturing can be determined by removing the fuel tank and examining the tag surrounding the wiring harness.

References

Manu. "Honda Sport 90 Café Racer by Deus Ex Machina". Moto Rivista. Retrieved 18 November 2013.
Honda S90 Shop Manual.
Honda S90 Owner's Manual.
Steve. "Honda S90 - Introduction". Retrieved 18 November 2013.

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[1] Manu. "Honda Sport 90 Café Racer by Deus Ex Machina". Moto Rivista. Retrieved 18 November 2013.

[2] Honda S90 Shop Manual.

[3] Honda S90 Owner's Manual.

[4] Steve. "Honda S90 - Introduction". Retrieved 18 November 2013.