Exhaust emissions from seven motorcycles were measured using three separate procedures for each bike. The first procedure used for the motorcycle tests was the Federal '7-mode' direct sampling procedure (applicable to 1970 and 1971 model year light duty vehicles), modified where necessary. The motorcycles were also tested on the Federal 'LA-4' bag sampling procedure (applicable to 1972 and newer light duty vehicles), modified as necessary. The final procedure used was a series of steady-state conditions designed to cover the range of operating conditions experienced by each motorcycle. The exhaust products measured during the steady-state tests included: total hydrocarbons; light hydrocarbons; CO; CO2; NO; NOx; O2; total aliphatic aldehydes and formaldehyde; particulate; and exhaust smoke. The motorcycles were operated on a modified automotive chassis dynamometer, and the emissions results are used in conjunction with statistics on motorcycle population and usage to estimate national emissions impact.


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    Title :

    Exhaust Emissions from Uncontrolled Vehicles and Related Equipment Using Internal Combustion Engines. Part 3: Motorcycles


    Contributors:
    C. T. Hare (author) / K. J. Springer (author)

    Publication date :

    1973


    Size :

    174 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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