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<DIV><FONT face=Arial>Kurt,</FONT></DIV>
<DIV><FONT face=Arial>A "pop" would indicate lean to me. Richness
through the midrange would involve a "gurgly lag" (sorry, best description
I could think of).</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Verne</FONT></DIV>
<BLOCKQUOTE dir=ltr
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=kurt@bozarthhomes.com href="mailto:kurt@bozarthhomes.com">Kurt
Bozarth</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> Monday, April 18, 2005 8:22
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> OS mixture question</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">OS 140 RX (non-EFI)
question:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">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.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Kurt Bozarth
</SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>