Donny's Unauthorized Technical Guide to Harley-Davidson, 1936 to Present: Part I of II-The Shovelhead: 1966 to 1985 (Volume 5)
DONNY PETERSEN established and operated Heavy Duty Cycles in Canada from 1974 to 2010; his monthly column, Techline, has appeared in American Iron Magazine since 1992. Instructed privately by Harley-Davidson engineers, he has taught mechanics, designed tech-school curricula, and authored mechanic-licensing examinations. He lives in Toronto.