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My honda CB 400 has3 wires indicators and cannot find a solution how to connect new indicators with 2 wires only

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Your old indicators ... the lamp has two filaments and the new indicator lamp has one filament? ... I am guessing ... The old indicators have running lights and turn signals while the new have only turn indicator. If you check this and find it to be true ... You will find power on the wire you should hook up when you turn on the turn signal. Find power with a volt meter or the actual lamp with proper ground to the frame. If this isnt the case, you may have a ground wire. Look inside the lamp sockets for both devices to see if there is one or two buttons in the bottom.

Run with this and let me know what happens.

Posted on Dec 04, 2012

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  • chris Dec 06, 2012

    In response to comments given regarding the 3 wires indicators i have found that these have no running lights and do not work at all while the third wire is remove and all ground wires checked .

  • chris Dec 06, 2012

    Should i replace the flasher unit ?

  • A Miller Dec 06, 2012

    I need more info from you before I can answer the question should you replace your flasher. I dont thik the flasher was addressed in the original question. What is the deal with the lights? One filament or two? Have you tried looking at the generic shop man at the Honda Rider Club web site? Have you done any research in the form of asking at the parts department where you bought the replacement lamps?


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SOURCE: 1975 Honda CB 400 F Spark plug info

Hi, your plug number for an NGK plug is D8ESL As far as the plug socket size it is a 13/16 deep well socket. The gap should be set at .07-.08mm.

Posted on Aug 23, 2009

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