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<DIV><SPAN class=071132901-03032003>Harry,</SPAN></DIV>
<DIV><SPAN class=071132901-03032003></SPAN> </DIV>
<DIV><SPAN class=071132901-03032003>I would bet that you are really getting
11,850 RPM. Are you sure your tachometer is not set to a three-bladed
prop? If not, then something is wrong. You should get over 11,000
rpm with a 12x6 prop.</SPAN></DIV>
<DIV><SPAN class=071132901-03032003></SPAN> </DIV>
<DIV><SPAN class=071132901-03032003>12x6 is too little prop for the YS 63.
Try a 12x7 or a 13x6.</SPAN></DIV>
<DIV><SPAN class=071132901-03032003></SPAN> </DIV>
<DIV><SPAN class=071132901-03032003>David</SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On Behalf
Of </B>HARRY LAWTON<BR><B>Sent:</B> Sunday, March 02, 2003 5:21
PM<BR><B>To:</B> discussion<BR><B>Subject:</B> YS 63 FZ<BR><BR></FONT></DIV>
<DIV>Hi All, I have a YS 63 FZ. I have run 3 gals. of YS 20-20
fuel through it using a 12x6 APC prop. The best RPM I can get is
7,900. Is this normal or should I be getting more
RPMs. Any suggestions? Thank you. Harry
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