July 1, 2003: Kohler has voluntarily initiated a campaign to replace the black iron wet exhaust pipe assembly on specified Kohler marine generator sets. Carbon monoxide poisoning may result from failure of the black iron wet exhaust pipe used on these generator sets. They will replace the black iron assembly with a stainless steel exhaust tube. Contact an authorized Kohler dealer or call Kohler at 866-866-4933 or from outside the U.S. at 920-803-4986. Information is also available on the Kohler web site at Kohler Power: Home Page. 1950 to 1989 Marine generator sets, equipped with L600 or L654 gasoline engines under the following model numbers: 2R, 2A, 2.5R, 2.5A, 3.5R, 3.5A, 4R 4A, 5R, 5A, 6.5R, 6.5A, 7.5R & 7.5A If you have one of these with the cast iron exhaust... get it replaced... it could save your life!