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Thread: Big Red carb acting weird...

  1. 04-24-2009, 06:37 PM #1
    Thorpe's Avatar
    Thorpe
    Thorpe is offline Power User Lord of the trike
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    Big Red carb acting weird...

    Just had the carb off my BR. Pulled it down, cleaned the snot out of it and put a new choke valve and a rebuild kit into it... Put it back on the trike, gave it one kick and it idled about 200 rpms high... Pretty darn minor... Took it for a test ride, and in low gear, from idle to 1/4 throttle it has a little bog, and then it pulls like everything. Its not as noticable in second and third. Even get a occasional burp out of it in those low rpms, but runs great through the mid to top end. My question being, does it sound like it is a needle adjustment issue, crap in the low speed needle, or what about the synchronizing between the butteryfly and the slide....? Any suggestions are greatly appreciated...
    Last edited by Thorpe; 04-24-2009 at 06:52 PM.
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  2. 04-24-2009, 10:05 PM #2
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    smvorndran
    smvorndran is offline Just Too Addicted Arm chair racerJust too addicted
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    You should have checked the sync between the butterfly & the drum, but you should be able to do that with it on the bike. Are you running an air filter? Is it clean & oiled properly? Air filters can goof things up.

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  3. 04-24-2009, 11:13 PM #3
    Thorpe's Avatar
    Thorpe
    Thorpe is offline Power User Lord of the trike
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    Brand new air filter, and oiled... How is the sync supposed to be set up? I have it set so the slide and the butterflys are at the same time... I probably have a .005 gap at the adjuster. Is that not correct?
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
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  4. 04-26-2009, 12:32 AM #4
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    smvorndran
    smvorndran is offline Just Too Addicted Arm chair racerJust too addicted
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    That should be good. I think the manual says no gap, but .005" probably isn't anything on drum/butterfly sync. ????????

    smvorndran
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