Join Date: Oct 2006
Location: Green Bay, Wisconsin, USA
Make: GL1500 SE
The original field type starter would have to have the brush polarity reversed. Like Dave said the end cap/brush holder. If you had a permanent magnet type starter it would run backward by reversing polarity. I am not sure just changing the end plate will give you the results you are looking for. It should go in the opposite direction but I am not sure about the timing between the field and armature being optimum???
Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.