Factory Service Bulletin for Harley Davidson 1957-1969 Big Twins

The Factory Service Bulletin, VOL. 4, for 1957-1969 Big Twin is a compilation of service bulletins covering great tips from the people at the factory to dealers letting them know what things to change for the better, and what to change before something explodes. Let this book be a checklist to make sure your Big Twin is up-to-date on all the tricks and tweaks.