Yeehaw,Whoopie

[Lance Van Nostrand]

I'd be very interested.  Did it fit without mods?  I never even thought of doing this.  I think the 170 carburation is better than the 140 but I would have thought it to be the result of many factors.  I'm interested in more details.
--Lance

  ----- Original Message ----- 
  From: mdarr00 at comcast.net 
  To: discussion at nsrca.org 
  Sent: Friday, June 18, 2004 10:33 AM
  Subject: Re: Yeehaw,Whoopie


  I needed a new carb for my O.S. 140RX, but at the time they were on back order.  So for giggles I took the carb off of my 3M 170 to see what would happen, and it ran great.  I was happy with the performance so I just bought a 3M 170 carb for the O.S.  I can e-mail pics if you are interested in seein the 3M carb on the O.S.

  Mike Darr
  District 4
    ----- Original Message ----- 
    From: Nat Penton 
    To: discussion at nsrca.org 
    Sent: Thursday, June 17, 2004 11:27 PM
    Subject: Yeehaw,Whoopie


    I installed an old Perry carb on the 91FX. It landed with the same idle speed as at takeoff. An unsuspected additional, but understandable, benefit was much better braking on the downlines. There may be slightly less top end power but the benefits far outweigh the loss, if any. The Perry has a brass barrell which has a lower coef of expansion than alum. OS needs to reengineer the FX carbs and also, I presume, the RX carbs.There may be other carb options availiable that I am not aware of ?                       Nat Penton
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