OS mixture question

[Verne Koester]

Kurt,
A "pop" would indicate lean to me. Richness through the midrange would involve a "gurgly lag" (sorry, best description I could think of).

Verne
  ----- Original Message ----- 
  From: Kurt Bozarth 
  To: discussion at nsrca.org 
  Sent: Monday, April 18, 2005 8:22 PM
  Subject: OS mixture question


  OS 140 RX (non-EFI) question:



  When I advance the throttle, the rpms remain at idle for approx. one second, "pop" and then advance to full throttle rpms  I am not quite sure if this "pop" and hesitation is a result of having too lean of an idle mixture or too rich.  This is an older motor released back when Hobby Services offered a free needle valve assembly replacement to correct for mid-range richness issues.  I do not know if this was done or not - something I will check for tonight.  I have never adjusted the pump setting.  Let me know your thoughts.  Thank you.



  Kurt Bozarth 
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