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<DIV><FONT face=Arial size=2>My money is on the exhaust valve being coked up
and/or the ring sticking.</FONT></DIV>
<DIV><FONT face=Arial size=2><BR>Eric.</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=johnferrell@earthlink.net
href="mailto:johnferrell@earthlink.net">John Ferrell</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, February 12, 2006 2:50
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] YS DZ
pump settings</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Try this before getting too
complicated:</FONT></DIV>
<DIV><FONT face=Arial size=2>A loose prop will cause back fires. After the
first backfire the machined groves are smoothed out on the prop hub.
</FONT></DIV>
<DIV><FONT face=Arial size=2>Easy to find out. cut a couple of washers from
coarse (80?) sand paper, CA them so the rough side is out and put the assembly
between the prop hub and the Spinner. </FONT></DIV>
<DIV> </DIV>
<DIV>John Ferrell <BR><A
href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=divesplat@yahoo.com href="mailto:divesplat@yahoo.com">Ed Deaver</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, February 11, 2006 10:56
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] YS DZ pump
settings</DIV>
<DIV><BR></DIV>
<DIV>My buddy has a 140DZ and is having problems. CoolPower 30% Heli
fuel, 16.5x12.5W prop, flying at sea level. </DIV>
<DIV> </DIV>
<DIV>We had been using Magnum DZ but his header kept getting plugged, so
switched fuel.</DIV>
<DIV> </DIV>
<DIV>Now he is having problems with it backfiring. He lost his spinner
the other day, and another time it was held on only by a thread or so on the
spinner bolt.</DIV>
<DIV> </DIV>
<DIV>He has tried richening up the pump(turning in) and has also tried
running it blubbery rich(2.25 turns out) </DIV>
<DIV> </DIV>
<DIV>On the ground, it starts easily, runs well he states, then soon as
taking off, it begins to run ragged, and recently yeilding 10 of 10 dead
sticks.</DIV>
<DIV> </DIV>
<DIV>Any suggestions??</DIV>
<DIV> </DIV>
<DIV>Thanx in advance</DIV>
<DIV> </DIV>
<DIV>ed<BR><BR></DIV>
<P>
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