Honda Sport 90
Encyclopedia
The Honda Sport 90, possibly more popularly known as the Honda Super 90 or simply Honda S90, is 90cc low-powered motorcycle made between 1964-1969.
It had a single cylinder
OHC air-cooled engine linked to a 4 speed transmission. There was no tachometer
but the speedometer indicated speed ranges for each gear. Top speed was claimed to be 64 mph as compared to the CL90's 59. The engine was rated at 8 horsepower
, presumably at the countershaft sprocket, as Honda denied having more than 6.5 HP at the rear wheel, as evidenced in a letter written to [at least] the Reliable Co., the only Honda dealership at the time in Winnemucca, Nevada
, in order to quell complaints by the Highway Patrol
of sales to younger riders. (A rating under 6.5HP was a requirement in Nevada for a low-powered motorcycle license for those 14 and over, to the age of 16. There was a 35 mph top speed requirement, which was up to the operator to control.)
Hand clutch and usual controls were in place. Shifting was "1 down, 3 up," with neutral between these.
A metal cylinder behind the carburetor
held the air filter
. Tools went under the seat in their own compartment. The frame was pressed steel. This machine was not intended for off road, as evidenced by narrow handle bars, "universal" street tires, and no accessories for such travel. 90 mpg was not hard to attain, even with spirited riding. The engine held a quart of oil and had an internal centrifugal oil filter.
There are a variety of models including the Honda S90, CS90, Sport 90, Super 90 and the Benly 90. The date of manufacturing can be determined by removing the fuel tank and examining the tag surrounding the wiring harness.
It had a single cylinder
Cylinder (engine)
A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work...
OHC air-cooled engine linked to a 4 speed transmission. There was no tachometer
Tachometer
A tachometer is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute on a calibrated analogue dial, but digital displays are increasingly common...
but the speedometer indicated speed ranges for each gear. Top speed was claimed to be 64 mph as compared to the CL90's 59. The engine was rated at 8 horsepower
Horsepower
Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...
, presumably at the countershaft sprocket, as Honda denied having more than 6.5 HP at the rear wheel, as evidenced in a letter written to [at least] the Reliable Co., the only Honda dealership at the time in Winnemucca, Nevada
Winnemucca, Nevada
-Demographics:As of the census of 2000, there were 7,174 people, 2,736 households, and 1,824 families residing in the city. The population density was 867.5 people per square mile . There were 3,280 housing units at an average density of 396.6 per square mile...
, in order to quell complaints by the Highway Patrol
Highway patrol
A highway patrol is either a police unit created primarily for the purpose of overseeing and enforcing traffic safety compliance on roads and highways, or a detail within an existing local or regional police agency that is primarily concerned with such duties.Duties of highway patrols or traffic...
of sales to younger riders. (A rating under 6.5HP was a requirement in Nevada for a low-powered motorcycle license for those 14 and over, to the age of 16. There was a 35 mph top speed requirement, which was up to the operator to control.)
Hand clutch and usual controls were in place. Shifting was "1 down, 3 up," with neutral between these.
A metal cylinder behind the carburetor
Carburetor
A carburetor , carburettor, or carburetter is a device that blends air and fuel for an internal combustion engine. It is sometimes shortened to carb in North America and the United Kingdom....
held the air filter
Air filter
A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. A chemical air filter consists of an absorbent or catalyst for the removal of airborne molecular contaminants such as volatile organic compounds...
. Tools went under the seat in their own compartment. The frame was pressed steel. This machine was not intended for off road, as evidenced by narrow handle bars, "universal" street tires, and no accessories for such travel. 90 mpg was not hard to attain, even with spirited riding. The engine held a quart of oil and had an internal centrifugal oil filter.
There are a variety of models including the Honda S90, CS90, Sport 90, Super 90 and the Benly 90. The date of manufacturing can be determined by removing the fuel tank and examining the tag surrounding the wiring harness.