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<DIV><FONT face=Arial size=2>Replace the o-rings in the intake manifold (intake
pipe) part # 71 on <A
href="http://www.centralhobbies.com/Engines/parts/YS140LEX.htm">http://www.centralhobbies.com/Engines/parts/YS140LEX.htm</A> or
seal the top and bottom of that part with silicon. If this doesn't work
replace other o-rings.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Don</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=getterflash@yahoo.com href="mailto:getterflash@yahoo.com">Bob
Kane</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> Sunday, July 11, 2004 10:24
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: YS 140 FZ to L Conversion
Help Needed</DIV>
<DIV><BR></DIV>
<DIV>Hmmmm . . . . . . you have put all the right parts in and assuming
the rest of the engine is sound. . . . . my guess is an air
leak. The low end needle on my conversions is usually about 3/4 turn out from
closed. Did you replace the gaskets?<BR><BR><B><I>Ed White <<A
href="mailto:edvwhite@yahoo.com">edvwhite@yahoo.com</A>></I></B> wrote:
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Folks,<BR><BR>I
need some advice. I've converted my YS 140 FZ to an<BR>L. New crank, crank
ring, L throttle barrel and new<BR>throttle barrel seal. Great increase in
power, but<BR>can't get it to idle worth a damn. I either fly with<BR>a very
high idle or it quits in the air after its been<BR>at idle. On the ground I
have to either set a very<BR>high idle (>3000 rpm) or it just looses rpm
until it<BR>dies. In the air if it doesn't have the very high<BR>idle it
quits after any maneuver that needs it to idle<BR>on a long downline. It
continues to idle but quits<BR>when I increase throttle.<BR><BR>Here are
some of the particulars: OS F plug, Magnum 1<BR>and 1.5 fuel (acts the same
with both fuels), 17-10N<BR>prop<BR><BR>When this engine was an FZ it ran
and idled<BR>beautifully in this same plane (same tank, same fuel<BR>lines,
same throttle servo). Just was a little shy on<B! R>power for the Masters
sequence.<BR><BR>Things I've tried:<BR><BR>low speed need settings from 1 to
2 turns (lots of<BR>settings in between)<BR>new glow plug<BR>removed the
regulator ballast<BR>put in a new piston ring<BR>drilled holes in the
piston<BR>new diaphragm<BR><BR>None of the above made any difference I could
tell. <BR>Have torn it down far enough to replace the piston<BR>ring and
reassembled. Found nothing out of place.<BR><BR>Aside from buy another
engine, I'd appreciate
any<BR>suggestions.<BR><BR>Thanks,<BR><BR>Ed<BR><BR><BR><BR>__________________________________<BR>Do
you Yahoo!?<BR>New and Improved Yahoo! Mail - Send 10MB
messages!<BR>http://promotions.yahoo.com/new_mail
<BR>=====================================<BR># To be removed from this list,
go to http://www.nsrca.org/discussionA.htm<BR>and follow the
instructions.<BR><BR></BLOCKQUOTE></DIV><BR><BR>Bob
Kane<BR>getterflash@yahoo.com
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