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<DIV>To all those that replied…</DIV>
<DIV> </DIV>
<DIV>Having the luxury of living 3 miles from my office, I came home for lunch
and promptly opened up the regulator body.</DIV>
<DIV> </DIV>
<DIV>Although there was no sign of swelling or disfigurement in the diaphragm, I
did note a very fine hairline crack where the diaphragm contacts the
ridge of the seat for a seal. It was in a number of places around the edge of
the diaphragm. You really need to look close as it wasn't apparent until I
pulled at the side gently. I promise from this point forward to never, ever, use
Prather in my YS engines. The YS Gods were not pleased with
me…ahh…<VBG></DIV>
<DIV> </DIV>
<DIV>I did replace the diaphragm and plunger while I was at it and noted it was
fairly clean. I will try it as soon as the weather clears. Might have to wait
for the weekend due to rain.</DIV>
<DIV> </DIV>
<DIV>Since I have three of these engines and would like to keep them
operational, where can I get replacement parts?</DIV>
<DIV> </DIV>
<DIV>YS1125 - Regulator Gasket (Need to replace this one now, plus a couple of
spares)</DIV>
<DIV>YS1145 - Plunger</DIV>
<DIV>YS1130 - Diaphragm</DIV>
<DIV>YS1150 - Regulator Spring</DIV>
<DIV> </DIV>
<DIV>Or any other gasket sets for the YS 61R LS…</DIV>
<DIV> </DIV>
<DIV>Thanks to everyone that replied. I will let you know how it runs when I get
the chance..</DIV>
<DIV> </DIV>
<DIV>Larry</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="FONT: 10pt arial"><B>From:</B> <A title=PatternFlyer@msn.com
href="mailto:PatternFlyer@msn.com">Ihncheol Park</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 28, 2003 8:07
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Need Help on YS 61R Long
Stroke!!!</DIV>
<DIV><BR></DIV>
<DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2>Bill, It was actually for Larry,</FONT></SPAN></DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2>Larry,</FONT></SPAN></DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff size=2>It
looks like almost everyone is telling you to check out the
Diaphragm.</FONT></SPAN></DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff size=2>Troy
Newman, Bill Carpenter, and others including myself.</FONT></SPAN></DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2>Ihncheol</FONT></SPAN></DIV>
<DIV><SPAN class=790070513-28042003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> <A
href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</A>
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Bill
Carpenter<BR><B>Sent:</B> Monday, April 28, 2003 4:44 AM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Re: Need Help on YS 61R Long
Stroke!!!<BR><BR></FONT></DIV>Ihncheol,<BR><BR>You probably ruined your
diaphragm with the after run oil - you can only use a non petroleum based
oil like Ultra Oil. Replace it and try the following setup:<BR><BR>APC
13X10 (windy conditions) or 13 1/2X10 (calm days) prop.<BR>15%
nitro.<BR>O.S. #8 plug or K&B 1L.<BR>Hatori 650 pipe.<BR>>From the
glow plug to the first ring on the pipe measure 20 inches straight
back.<BR><BR>This should idle way down and provide plenty of power for any
airplane up to about 9 lbs. dry. Throttle transition S/B excellent and
downlines can be very slow with the larger prop at low idle.
<BR><BR>Hope this helps, Bill <BR><BR><BR>----------<BR>From:
"Ihncheol Park" <PatternFlyer@msn.com><BR>To:
<discussion@nsrca.org><BR>Subject: RE: Need Help on YS 61R Long
Stroke!!!<BR>Date: Mon, Apr 28, 2003, 1:37 AM<BR><BR><BR>
<BLOCKQUOTE>OOps, <BR>wrong click on the last one.<BR> <BR>I am not
an expert, but here goes.<BR>The idle is still a little too high. My
YS 61LS idled at 2000rpm with 13x8. I could go
lower.<BR> <BR>Have you checked the Diaphragm?<BR>As basic
maintenance, cleaning the needle valve assembly is also a good
idea.<BR> <BR>When I take out a previously stored engine, I try to
clean out the oil (I use Mobile 1 Synthetic oil) with fuel. Remove
glow plug, use starter to turn the engine that was hand primed before
using starter. Flood it so that the old oil get mixed with fuel and
drained out to plug hole. (Make sure to cover the plug hole with rag
to prevent fuel/oil splash).<BR> <BR>I am not sure about Prather's
after run oil. never tried it.<BR>Also, I don't use castor anymore.
I had to clean one of OS pump because of the castor residue.
<BR> <BR>Hope this
helps,<BR> <BR>Ihncheol<BR> <BR> <BR> <BR> <BR>
<BLOCKQUOTE>-----Original Message-----<BR><B>From:</B> <FONT
color=#0000ff><U>discussion-request@nsrca.org</U></FONT> [<FONT
color=#0000ff><U>mailto:discussion-request@nsrca.org</U></FONT>]<B>On
Behalf Of </B><FONT
color=#0000ff><U>jed241@msn.com<BR></U></FONT><B>Sent:</B> Sunday, April
27, 2003 7:18 PM<BR><B>To:</B> NSRCA<BR><B>Subject:</B> Need Help on YS
61R Long Stroke!!!<BR><BR>I'm having problems with the engine leaning
out on transition to full throttle. The engine is in a 60 size pattern
plane. The set up is unchanged from when I bought it. However, both
engines have been sitting in a sealed bag after a good oiling with
prather after run oil.<BR> <BR>The pressure in the tank is fine and
builds up to 6psi, measured on a pressure gauge. I'm confident that
there is no air leak as it holds the pressure in the tank. Idle seemed
to be very steady with no sign of dying at 2,700rpm Would also like to
know where the reliable idle RPM is..<BR> <BR>I allowed the engine
to run for about 15 to 20 seconds at about 4,000rpm and as I slowly
increased to half throttle or about 7,500rpm, it would immediately die.
I took the head temp and it was about 250F. I changed the engine out
with a back up and it did the same exact thing. Again, same results on
both engines. I also change the glow plug and as expected it didn't
change anything. I haven't checked the fuel filter, but I will
shortly. The regulator is adjusted to flush with the
case.<BR> <BR>The original engine had about 25 flight on it ,and
the back up is a brand new rebuild with new piston, sleeve, bearings,
etc…)<BR> <BR>Setting aside the fuel filter, is there anything else
that I'm missing?<BR> <BR>Wildcat 15% Nitro w/ 18% Oil (80%
Synthetic/ 20% Castor) <BR>12x11N APC Prop<BR>Hatori Pipe<BR>OS #8
Plug<BR> <BR>Thanks,<BR> <BR>Larry<BR>NSRCA 3083<BR>AMA
5024<BR><BR></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></DIV></BLOCKQUOTE></BODY></HTML>