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Thread: Harley 28 JDF

  1. #1

    Harley 28 JDF

    Hello guys,

    what does the letter "F" mean for a 28 JDF ?


    Best regards from Germany
    Jochen

  2. #2

    Re: Harley 28 JDF

    Before the JD there was the F and FD which were 61 inch versions, Harley sold a few of these in 1928.
    Another possibility is the fore runner of the 29JDF two unit system.
    A guy in Europe claimed to have one of these, more details or a photo would help to clarify.

  3. #3

    Re: Harley 28 JDF

    Before the JD there was the F and FD which were 61 inch versions, Harley sold a few of these in 1928.
    Another possibility is the fore runner of the 29JDF two unit system.
    A guy in Europe claimed to have one of these, more details or a photo would help to clarify.

  4. #4

    Re: Harley 28 JDF

    If it’s real, might have a DVAR. Magneto and a generator all in one. Somewhat common on Indians and other makes of the era.

    FD’s 27-29 had FFVRS and FFVLS Bosch Magnetos superceding the workhorse that was the ZEV.

    If outfitted in Europe with a DVAR it would of been a dealer supplied unit probably. They were not cheap in their day with magnetos costing as much as 50$.
    27 JD (almost)

  5. #5

    Re: Harley 28 JDF

    Quote Originally Posted by 1950panhead View Post
    Before the JD there was the F and FD which were 61 inch versions, Harley sold a few of these in 1928.
    Another possibility is the fore runner of the 29JDF two unit system.
    A guy in Europe claimed to have one of these, more details or a photo would help to clarify.
    F was 61" magneto
    FD was 74" magneto
    J 61" generator
    JD 74" generator

    and they were not "before"..
    from 21 or 22 they were made simultaneously
    before that only 61" model was made

    no idea what JDF is but its for sure 74" electric model , mayby Foreign?

    MOA

  6. #6

    Re: Harley 28 JDF

    I'm with WHP on this one

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