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Help CB250RS Cut Out Wiring

Discussion in 'Honda 250cc Twins' started by Gordonh, Jan 22, 2019.

  1. Gordonh

    Gordonh Member

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    80AA67FF-5172-44B6-A5B1-099EEC06E3A1.png Hi all
    This is all that is left of the wiring on the project sprint bike. Does anyone know the best way to wire in a cut off switch for a lanyard. I read that certain engine stopping methods should not be used too often.
    Thanks
     
  2. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    I don't know about being used too often, never heard that before.
    I would suggest putting the cut out in the Black/Yellow going from CDI box to coil.
    What does the Black/White do in a full system? Could that be the earthing wire to the original main switch? If so then use it for cutout with switch going to an earth point.
     
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  3. Gordonh

    Gordonh Member

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    Thanks Murdo
    The tethered cut off is a requirement for Speed Events in some places.
    Ok, switch in the black/yellow to the coil to interrupt the signal.
    The black and white in my picture is only white in an original diagram and seems to be a tapping off a generator coil. Thanks for that.

    upload_2019-1-22_0-29-16.png
     
  4. Andych

    Andych Well-Known Member Premium Member

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    I think you will find it is a requirement for Speed events such as Speed Week at Lake Gairdner, Bonneville, etc. Not required for Drag racing as far as I know..
     
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  5. Gordonh

    Gordonh Member

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    Yes I think it is only for speed events.
     

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