140L idle

[wgalligan]

Ed,

It could be a bad throttle servo jumping on the end of the pot.  I had that
happen to me one time and it seemed to only happen after the system was up
for awhile and not cold...like after about 5 min or more of flying.   Just a
though since it seems you have tried a bunch of things all ready.

Good Luck,

Wayne G.
----- Original Message -----
From: "Ed Deaver" <divesplat1 at msn.com>
To: <discussion at nsrca.org>
Sent: Wednesday, October 01, 2003 11:46 PM
Subject: 140L idle


> Hey everyone.  Have a friend with an extemely strong 140L that has ran
> perfectly all summer long on magnum #2 with a 16.5X12APC.  About 4 weeks
> ago, it started dieing during the landing sequence, sometimes on approach
> others just after touch down, without any change to the idle trim.  On the
> ground, the thing would idle for over a minute and not sag and transition
> was good to full throttle.
>
> We have done all we can think off.  Throttle linkage was changed out,
> Throttle barrel arm changed out, everything replaced.  All fuel lines were
> replaced.  Valve cover was found to be warped a little so new gasket(leak
> free) and valve cover(sanded flat also), Valves checked, Diaphagm was
> changed.
>
> We aren't new to YS's, but this has us baffled.  He has tried adjusting
both
> pump and low end adjustments but still experience erratic idle, towards
end
> of flight.
>
> Any suggestions??
>
> Thanks in advance.
>
> ed
>
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