YS .91 idle setting

[Terry Brox]

You might try turning the regulator in. To get my 91AC to idle, I had to turn the regulator in nearly 3/4 of a turn and idle out 1 1/2 turns. Ran great after that. What nitro are you running? You need a minimum 20%, and 30% is better yet.
  ----- Original Message ----- 
  From: Keith Hoard 
  To: discussion at nsrca.org 
  Sent: Monday, April 07, 2003 5:12 PM
  Subject: Re: YS .91 idle setting


  Yup, got that. . . left is lean, right is rich. . . Just came in from messing with the low speed needle and it is set good for the transition, but it still won't idle for more than 20-30 seconds.  I run it full throttle for about 10 seconds to pressurize the tank then drop it to idle - 2000 to 2400 RPM.  The engine idles at this speed for about 20-30 seconds then the RPM slowly decays until it quits, then fuel drips out of the carb (engine inverted).  I relight the glow plug, spin the engine and it starts right up again and repeats.



  Keith L. Hoard
  Cordova, TN
  klhoard at midsouth.rr.com 
    ----- Original Message ----- 
    From: Terry Brox 
    To: discussion at nsrca.org 
    Sent: Monday, April 07, 2003 5:03 PM
    Subject: Re: YS .91 idle setting


    Low speed is an airbleed. Out is leaner, in is richer. Opposite from the high speed.
      ----- Original Message ----- 
      From: Keith Hoard 
      To: NSRCA Mailing List 
      Sent: Monday, April 07, 2003 4:51 PM
      Subject: Fw: YS .91 idle setting



      From: Keith Hoard 
      To: NSRCA Mailing List 
      Sent: Monday, April 07, 2003 3:06 PM
      Subject: YS .91 idle setting


      Gentlemen,

         I'm breaking in my YS .91FZ and seem to have gotten the top end working fine, but the engine idles at 2000 RPM for about 10 seconds then slowly dies.  I don't remember which way to turn the low speed needle, and the YS Performance page seems to have been hijacked.  Thanks!!




      Keith L. Hoard
      Cordova, TN
      klhoard at midsouth.rr.com
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