YS 63 FZ

[David Flynt]

Harry,

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.

12x6 is too little prop for the YS 63.  Try a 12x7 or a 13x6.

David
  -----Original Message-----
  From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of HARRY LAWTON
  Sent: Sunday, March 02, 2003 5:21 PM
  To: discussion
  Subject: YS 63 FZ


  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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