YS 140 problem

[Dave Harmon]

If it is a 140 Sport and you are using low viscosity oil fuel such as
Cool Power 30% Heli, the regulator will need to be leaned and the low
speed need needle will need to be leaned as well. 
I have used 2 of these engines very recently and they run very well and
idle very well if you can get the idle lean enough.
If you change to standard viscosity fuel such as Cool Power 20/20 Pro
Pattern the mixture should lean out.
Of course, you could contact YS Performance and get the official word re
this problem. 

Regards

Dave Harmon
NSRCA 586
K6XYZ[at]valornet[dot]com
Broken Arrow, Ok.

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Bob Kane
Sent: Thursday, July 14, 2005 9:18 PM
To: discussion at nsrca.org
Subject: Re: YS 140 problem

One more question, did you take the carb off or apart?
There is a gasket between the carb body and packplate
that will fit backwards and cause problems.

--- Bob Kane <getterflash at yahoo.com> wrote:

> Wow, that is a big prop . . . .
> 
> Anyway, check the throttle stop screw, you should be
> able to close the throttle barrel with the servo.
> The
> stop screw is next to the intake opening. 
> 
> 
> The low end needle should be out about 1 turn from
> closed. It is an air bleed, so in is richer, out is
> leaner.
> 
> --- "Daniel J. Hamlett" <d77hamlett at comcast.net>
> wrote:
> 
> > The engine is a sport.  It has less than 40oz
> > through it.  I am running  
> > the 1.40, NHP 5/8th header and ES carbon 5/8th
> inlet
> > pipe.  Sorry I 
> > forgot to add this on the original post.
> > 
> > Bob Kane wrote:
> > 
> > >Which 140?  FZ, L, DZ, Sport?  I assume it must
> be
> > a
> > >DZ swinging a 17X10?
> > >
> > >--- "Daniel J. Hamlett" <d77hamlett at comcast.net>
> > >wrote:
> > >
> > >  
> > >
> > >>I know that in the past there has been a post on
> > the
> > >>following topic but 
> > >>I don't have it.  Something about having to
> drill
> > >>out the spray bar ???
> > >>
> > >>I have a YS 140 that I can't get to idle down to
> > >>2200.  The lowers that 
> > >>I can get it is to about 2750-2800.  I know that
> > >>this is way too high.  
> > >>I am running a Mezlick 17X10 prop and S+W 20/20
> > >>fuel.
> > >>
> > >>Any help on this would be appreciated.
> > >>
> > >>Thank you in advance and good luck to all at the
> > >>NATS.
> > >>
> > >>Dan
> > >>
> > >>    
> > >>
> > >
> > >
> > >Bob Kane
> > >getterflash at yahoo.com
> > >
> >
> >__________________________________________________
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> > >
> > >  
> > >
> > 
> 
> 
> Bob Kane
> getterflash at yahoo.com
> 
> 
> 		
> ____________________________________________________
> Start your day with Yahoo! - make it your home page 
> http://www.yahoo.com/r/hs 
>  
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Bob Kane
getterflash at yahoo.com


		
____________________________________________________
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