Kitfox Aircraft Stick and Rudder Stein Air Grove Aircraft TCW Technologies Dynon Avionics AeroLED MGL Avionics Leading Edge Airfoils Desser EarthX Batteries Garmin G3X Touch
Results 1 to 3 of 3

Thread: bing carbs

  1. #1

    Join Date
    Jun 2016
    Location
    Woodland,PA
    Posts
    50

    Default bing carbs

    Iam confused according to what I read in manuals the throttle spring holds the carb in the full open position however on mine the butterfly valve is in the closed position this cant be wide open or can it? These are bing CD carbs on a used 912 engine I do not what it was in before or how it was set up.Thanks

  2. #2
    Senior Member Dave S's Avatar
    Join Date
    Oct 2008
    Location
    St Paul, MN
    Posts
    1,833

    Default Re: bing carbs

    The factory configuration has a spring which pulls the throttle wide open. The theory behind this is if the cable breaks, it is better to have full power than have the engine go to idle.

    The throttle cable holds the position of the throttle against the spring - that is why you see a lot of vernier throttles on 912s rather than twist/friction locks which have some potential for slipping.

    Is this a used engine? if so, you might find that the setup has been modified or is missing something.

    Attached is a new-out-of-the-box 912ULS - should be able to see the throttle arm forward (open) pulled into that position by the spring forward and below the throttle arm.
    Attached Images Attached Images
    Dave S
    Kitfox 7 Trigear (Flying since 2009)
    912ULS Warp Drive

    St Paul, MN

  3. #3
    Senior Member TJay's Avatar
    Join Date
    Jan 2012
    Location
    Maurice, IA
    Posts
    217

    Default Re: bing carbs

    Your not looking at the choke butterfly are you, I have no idea if they even have one.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •