Browse Publications Technical Papers 2007-32-0016
2007-10-30

Development of a 4 stroke engine snowmobile to meet the future emission standard 2007-32-0016

A snowmobile is driven in nature freely. In recent years, the U.S. federal government requires to reduce the environmental hazards. The emission control of U.S. Environmental Protection Agency was established for 2006 model. From the driving performance point of view just changing engines from 2 stroke engines to 4 stroke engines for environmental issues require new chassis, layout and it is difficult to keep the performance in snow due to extra weight. As for the engine, it has high output, compact, low center of the gravity of chassis. As for the chassis, it has an unique layout for 4 stroke engine installing and is lightweight using several materials. The snowmobile has the high-output lightweight 4 stroke engine which can meet the EPA Phase III 2012 model regulation and the market need of the high performance and a lightweight chassis.

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