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  • #1

    Carb boots to engine head?

    So I am trying to piece together the bike again for spring. I have rejetted accordingly to fit the pods and kerker. Just finished the valve adjustment. Put everything back together and have been trying to synch all day with a carbtune with no luck. My main issue has been horrible backfiring and erratic movement. I have synched the carbs before but this time was a beast! So noticed puffs of smoke at times coming from where the carb boot meets the head on one or two of them...so I took the carbs off and tightened the carb boots ( i did have them off for rehab...) it ran without popping for a while until rpm started to drop then it continued. I thought I may just be really lean but after letting ou t the IMS's a turn or two nothing helped.

    1. Should I use RTV on the carb boot surface??

    2. I re-used my exhaust gaskets...would that cause crazy backpopping?

    3. SOmething with the valve adjustment?

    4. Do i need to go back into carbs??

    I am pretty frustrated...this is taking longer than i had hoped. Everything that can go wrong has been....

    thanks
    1979 XS1100SF (4-1 Kerker, XS Pods, 145 mains, 45 pilots, drag bars, blacked out)
    Tags: None
  • #2
    Are

    you sure it did not jump time while adjusting the valves? BTW- I use black silicone but no gasket. Just run the bolt down almost snug and let set. Then after cure finish tighten.
    Last edited by jmnjrpa; 03-20-2010, 05:08 PM. Reason: added
    '81 1100 MNS - "Midnight XSpress"
    Original except:
    120 mains outer cylinders - 125 mains inner cylinders - Ceramic headers - Powder coated pipes, covers calipers, and MC's
    4 pods - Air box gutted--E3 Plugs - High Back seat - Grooved out swing arm - SS brake lines
    Fork brace - 160 speedo - Auto CCT
    All gold paint and chrome replaced with GOLD plate
    "STUPID is Forever" Ron White.
    Contact me by PM -I don't deal with stupid anymore.

    Big John

    Comment

    • #3
      hopefully sure...

      Well my timing marks were perfectly lined up. I installed our new CCT jmnjrpa...rotated it by hand more than twice and everything was good..

      well I went ahead and used black silicone...except I went ahead and tightened...oops. Hopefully it will seal just as well.... If that doesn't fix it, then I will put in new exhaust gaskets...and trouble shoot from there..

      The problem is I don't know when I am going ot have time to do this. The semester is crushing in on me!!

      Anybody around Nashville wanna Help!!?? haha

      Thanks
      1979 XS1100SF (4-1 Kerker, XS Pods, 145 mains, 45 pilots, drag bars, blacked out)

      Comment

      • #4
        Sorry,

        In addition to having no time you are about to experience what has hit us today. We went from 72 at 6:00PM yesterday to 34 @ 6:00PM today. It was a straight slide with no warm up today. Wind gusts over 40 MPH and snow coming tonight. keep the covers up!
        '81 1100 MNS - "Midnight XSpress"
        Original except:
        120 mains outer cylinders - 125 mains inner cylinders - Ceramic headers - Powder coated pipes, covers calipers, and MC's
        4 pods - Air box gutted--E3 Plugs - High Back seat - Grooved out swing arm - SS brake lines
        Fork brace - 160 speedo - Auto CCT
        All gold paint and chrome replaced with GOLD plate
        "STUPID is Forever" Ron White.
        Contact me by PM -I don't deal with stupid anymore.

        Big John

        Comment

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