[SPAM] Re: Moki 180

[Grow Pattern]

The Moki has a fuel draw issue. The tank has to be right up close behind the engine. Would need a fuel feed system. For pattern use it is heavy and needs a big mount. No idea what muffler/pipe would work on it either???

E.
  ----- Original Message ----- 
  From: Bill Glaze 
  To: discussion at nsrca.org 
  Sent: Wednesday, February 16, 2005 10:45 AM
  Subject: [SPAM] Re: Moki 180


  Ron:
  I've been quite happy with mine; they have always started very easily and run well.  I've heard all these stories about pumping/regulating them etc. but I honestly don't know why one would need to do so, other than a defective setup in the first place.  I just run muffler pressure.
  Now, fuel:
  I experimented with some 15% that I run in my Y.S.engines.  As the Moki neared full throttle, I could plainly hear it rattling.  (with my hearing, that in itself is a minor miracle.)  So, I drained the 15% and put in some 5% that I happened to have.  Ran well, but after it heated up, I could detect some detonation.  So, I drained out the 5% and put in some FAI that I had been using.  Not only did the detonation cease, but I picked up some 400 rpm.  I was curious, so I called Gerrard, (importer, at that time.)  Jim said that I wasn't dreaming; the engine was designed for FAI fuel, and that they absolutely would recommend no more than 5% fuel, and that to be used only in the winter to help starting.  I don't remember numbers, but I do remember that it will idle for 5 minutes at 1800 rpm, and then immediately accelerate to full throttle when asked.  That's Jim Gerrard's criterion.  I'm not sure my Y.S. engines will do that.  Since I've gotten so heavily into pattern, I have done very little with anything else.  So, the information is probably a year old.  The Moki's are in (Individually, of course<G>) a Midwest Extra 300 which weighs 14 lb. 4 ozs.  and I use a Mesjlik 20-10 prop.  This is the only airplane I have ever owned that will truly go out of sight straight up, (John Ferrell was a witness on this!) and will do a true, round knife-edge loop.  And, with the recommended Bisson muffler, I get quite a few comments about how quiet the airplane is.  It sounds mellow, but I've never Db'd it.  Fun to own and fly?  You bet! :-) 
  HTH
  Bill Glaze

  Ron Van Putte wrote:



    On Feb 16, 2005, at 8:53 AM, Rcmaster199 at aol.com wrote: 


      To be honest, if weight wasn't an issue, I would use the MOKI 180. I have not used an engine more user friendly or more robust than that one, and has power to burn. Piped, propped and mounted correctly, it could be made fairly quiet. It was nice to just fuel it, prime it, one flip start it, and have it last several seasons without any hint of a problem. No bearings, no rods, no rings, or anything else for that matter. 


    I have virtually no experience with MOKI engines, other than to sell fuel to owners and listen to complaints from the ones who aren't convinced that MOKIs want/need low % nitro fuel to operate properly. Does anyone care to comment which fuel works best in their MOKI? 

    Ron Van Putte 

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