forum Forums General Discussion Backfiring

This topic contains 3 replies, has 3 voices, and was last updated by  eclecticeric 3 weeks, 4 days ago.

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  • #11921

    eclecticeric
    Member

      When I’m going downhill and take my foot off the throttle, I get a fair amount of backfiring – only from the right hand cylinder. I have a fuel-injected engine – is there anything I can do about this, other than ignore it ?

    • #11922

      SteveO
      Member

        I would check for air leaks between throttle body and cylinder head as a first step. Also check exhaust for leaks. Was it running OK as a bike?

        Steve

      • #11923
        WestEndGuzzi
        WestEndGuzzi
        Moderator

          Backfiring would indicate a weak pilot mixture, caused by Steve’s comment.
          Replacement silencers with less ‘resistance’ could also have an effect.
          Are the bodies balanced?
          Tony

        • #11927

          eclecticeric
          Member

            Thanks for the advice, everyone. I’ve tightened up the exhaust and intake systems, and read up on how to balance the throttle bodies – need to get/make a manometer. Waiting for better weather to see if tightening things up fixed it – if not I’ll balance the throttles, which sounds like a good idea regardless.

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