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Front cyclinder

Discussion in 'Technical' started by Herbert L. Williams, Mar 19, 2017 at 7:40 PM.

  1. Herbert L. Williams

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    Hey guys need a little help. My front cylinder quick firing out of the blue. I have changed plugs, cleaned wires and connectors. I am looking at replacing the coil. What coil do you recommend as a replacement. I ride a 2007 mastiff with 117ci S&S motor.
     
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  2. Herbert L. Williams

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  3. Jersey Big Mike

    Jersey Big Mike Active Member
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  4. Herbert L. Williams

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  5. ChoppaNoob

    ChoppaNoob Active Member

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    You can switch wires around to make sure it's the coil. Thought i had a bad coil once on my AIH. Turned out to be ignition module. There should be a troubleshooting guide here somewhere particular to BDM...
     
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  6. SKOGDOG

    SKOGDOG One of the old ones.

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    Good recommendation, ChoppaNoob...one time my front cylinder quit firing, and the problem was that the dang wire had pulled out of back of the coil. Not enough to to fall out, but enough to lose connection. Had to look pretty carefully to see it. As I recall Blacktopper pushed it back in with a stick. Cheapest and easiest fix ever!
     
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  7. BadDawg Bill

    BadDawg Bill Well-Known Member

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    I'd check the coil wires real careful. One is not making good contact...
     
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  8. Herbert L. Williams

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    I have 2 red lights on, when the bike is starting and running on the rear cyclinder, I see blue and yellow flashing as well. The bike will not stay running and the front cylinder still isn't firing, any suggestions
     

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