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<DIV><FONT face=Arial size=2>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.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Don</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=twildey1@twcny.rr.com href="mailto:twildey1@twcny.rr.com">LowPass</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, September 08, 2004 8:43
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: YS 63 question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2><STRONG>Chuck:</STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Sounds like the regulators are set lean or not
working correctly. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>What fuel is he using? Are you sure that it is
good?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Are you sure that the fuel system is holding
pressure?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>How much time on the engines?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Terry</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=CCzarnik@arclp.com href="mailto:CCzarnik@arclp.com">Chuck
Czarnik</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, September 08, 2004
8:06 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> YS 63 question</DIV>
<DIV><BR></DIV><!-- Converted from text/plain format -->
<P><FONT size=2>Quiet in here..<BR><BR>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.<BR><BR>Not a pattern plane, but there
is a lot of YS knowledge on this list.. Any thoughts?<BR>TIA,
Chuck</FONT> </P>
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