<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2900.2627" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>John,</FONT></DIV>
<DIV><FONT face=Arial size=2>Everything checks out except the crank
movement. The new bearings are being ordered today and I'm going to see
Verne when I get them.</FONT></DIV>
<DIV><FONT face=Arial size=2>All should be well shortly. </FONT></DIV>
<DIV><FONT face=Arial size=2>I am still in the market for a good YS-91AC if you
know of anybody.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ken</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=jpavlick@idseng.com href="mailto:jpavlick@idseng.com">John
Pavlick</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> Thursday, June 09, 2005 12:41
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: YS valve not the only
problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=070493204-09062005>Ken,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=070493204-09062005> Does it start Ok after it cools off? Make sure
you set the valve lash correctly. You shouldn't have a lot of movement in the
crank. That's another problem. At this point it is probably worth sending it
in for service. Most of the guys I know that are flying YS have a backup motor
- probably would be a good idea to find a second one. That way you can get the
plane in the air while your motor is out for service. Before you send it in
though, check the compression and the valve lash. You might find something
there.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=070493204-09062005>
<P><FONT size=2>John Pavlick<BR><A href="http://www.idseng.com/"
target=_blank>http://www.idseng.com</A><BR> </FONT>
</P></SPAN></FONT></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On
Behalf Of </B>Ken Thompson<BR><B>Sent:</B> Wednesday, June 08, 2005 9:05
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> YS valve not the
only problem<BR><BR></DIV></FONT>
<DIV><FONT face=Arial size=2>I just fired my YS-91 up after the valve
cleaning. It fired immediately and had plenty of power while still
running rich. After running for a minute or two the rpm's started
fluctuating a bit. The more it ran the less rpm's I was able to
maintain. I heard a noticable rattle that seemed to be coming from the
engine area. After the engine ran for about 5 minutes, the rpm's
started to drop more. I leaned the needle a little and the revs didn't
increase, so I richened it back up and idled down, the motor died. I
felt the spinner to see if it was warm and it wasn't, that's when I noticed
the movement of the output shaft. My first thought is the front
bearing, I have quite a bit of movement up and down and a little side to
side.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I guess I'm not meant to fly this plane.
Does anybody know where I can get a good YS-91, cheap?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think this one is going back to
YS.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>Ken</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>