YS 63 question

[Terry Brox]

YS 63 questionOne more thing you might check, if the engines have set, sometimes the metering slot in the barrel will get "goo" in it and will not allow fuel to flow freely. Try cleaning the throttle barrels metering slot and other passages. Had this happen to an old YS 60 years ago.
  ----- Original Message ----- 
  From: Don Szczur 
  To: discussion at nsrca.org 
  Sent: Wednesday, September 08, 2004 9:29 PM
  Subject: Re: YS 63 question


  Hello!  I have the exact same experience while helping a new pattern flyer set up his YS .63 just last week.  The engine would run fine at half to full throttle, but in the air if he went to idle any more than about 4 seconds the engine would quit.  All you need to do is turn IN the little air bleed screw on the side.  Try turning it in about 3/8 to a half turn to start.  You should find good results at this point.

  Don
    ----- Original Message ----- 
    From: LowPass 
    To: discussion at nsrca.org 
    Sent: Wednesday, September 08, 2004 8:43 PM
    Subject: Re: YS 63 question


    Chuck:

    Sounds like the regulators are set lean or not working correctly.  

    What fuel is he using? Are you sure that it is good?

    Are you sure that the fuel system is holding pressure?

    How much time on the engines?

    Terry

      ----- Original Message ----- 
      From: Chuck Czarnik 
      To: discussion at nsrca.org 
      Sent: Wednesday, September 08, 2004 8:06 PM
      Subject: YS 63 question


      Quiet in here..

      Tried to help a friend out at the field on Mon with a pair of YS63's on a twin.  Flew fine on the first flight several months ago, but both of them now will not hold idle when he pulled the plane back out this week.  They mostly run at 3000 up, just abruptly die below that.. Like fuel starvation.  If you punch the throttle hard, the engines would usually backfire and immediately die unless you ran quite rich.  Looks like he may have had a cooling issue on both engines (no cowl air other than valve cover).  Both engines doing exact same thing.  Possible heat damage?    Something ate both regulators?  I ran out of ideas.

      Not a pattern plane, but there is a lot of YS knowledge on this list..  Any thoughts?
      TIA, Chuck 

-----------------------------
NOTICE:  The information contained in this electronic mail message

is either attorney privileged and/or confidential information intended
only for the use of the individual or agent responsible to deliver
it to the intended recipient; or, alternately, proprietary information
(trade secret).  You are hereby notified that any dissemination,

distribution or copying of this communication or unauthorized use of the

information herein contained, is strictly prohibited. If you have

received this communication in error, please immediately delete it

from your computer and notify the sender of your receipt of this message. 

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20040908/d4fa3975/attachment.html