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  • Buzz Coils Rx
  • Battery/Distributor RX
  • Magneto Rx:
  • Plug, Wire, Condenser RX
  • Testing 101
  • Magneto and Vintage Tech Store

    • Shop by Brand

  • American Bosch
  • Wico
  • Fairbanks Morse
  • Helicoil and compatibles
  • Snapon
  • Briggs and Stratton
  • Edison Splitdorf
  • Bosch
  • Craftsman
  • Crosby
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    • B4 + B6 Manual

    Here is a factory owners manual for the American Bosch models B4 and B6. An atypical design and  subject to the usual woes of a defective condenser and a wound armature and sticky goo. Hopefully this will ease your woes. The distributor gear should be installed such that the rotor points to a spark plug post when the points break (firing position).

     

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    b4-b6-skinny-p1.png

     

    b4-b6-skinny-p3.png

     

    b4-b6-skinny-p5.png

     

    b4-b6-skinny-p7.png

     

    b4-b6-skinny-p9.png

     

    b4-b6-skinny-p11.png

     

    b4-b6-skinny-p13.png

     

    b4-b6-skinny-p15.png

     

    b4-b6-skinny-p17.png

     

    b4-b6-skinny-p19.png

     

    b4-b6-skinny-p21.png

     

    b4-b6-skinny-p22.png

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