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In motorcycle and marine outboard engines with multiple carburetors, the vacuum pressure of each carburetor should be balanced. Mechanics commonly use mercury carburetor synchronizers for this procedure. Acute exposure to high concentrations of mercury vapor can affect lung function and possibly damage the lungs.
Suggested citation
NIOSH [1999]. Hazard ID 6: Exposure to mercury vapor during the use of mercury carburetor synchronizers. Cincinnati, OH: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 1999-111.
