Browse Publications Technical Papers 2005-32-0114

Evaluation of Emissions from Asian 2-stroke Motorcycles 2005-32-0114

Gaseous and PM emissions of three Class 1 (sub-170 cc) on-highway motorcycles from Thailand that were equipped with crankcase scavenged two-stroke engines were evaluated at the U.S. EPA-National Vehicle and Fuel Emission Laboratory (NVFEL). Very little data currently exists on PM emissions from two stroke motorcycles. There are a large number of two stroke motorcycles in Asia, which appear to be a considerable contributor to PM inventories. This testing was conducted in response to a request from the World Bank for assistance in determining emissions factors for motorcycles commonly used in Asia.


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