"Ed Cregger" <ecregger@[EMAIL PROTECTED]
> wrote in message
news:FDN_j.6002$772.674@[EMAIL PROTECTED]
>
> It is a Sig Kougar.
>
> Now why would someone go to so much trouble in making such a beautiful
> model and then put an inferior engine in it to power it? They wouldn't.
> Find out what is wrong and fix it. OS makes good engines, but Enya makes
> engines that are a cut above OS engines.
>
> It would help if you would provide the engine model to us so we can
> evaluate it and make the proper recommendations. All Enya engines run
> great when ran on the proper fuel and broken-in properly. Some require
> some special treatment. We are trying to find out if this is one that
> requires lots of castor oil or low nitro in the mix.
>
> Ed Cregger
>
Ed's right, Enya's are good engines. I've got a 30+ year old Enya .40
that
I still fly regularly and it's never missed a beat. Tell us what your's
is
doing.
The air bleed carb throws some people off but it's easy to deal with. At
full throttle adjust the needle valve to peak RPMs then back it off a
hair.
See that it runs solidly at full throttle or tweak it a little more. When
you're happy with the high end, throttle back to an idle and listen to the
engine. Especially listen when you transition back to full throttle.
If it just dies flat when at idle it's probably too lean. If it bobbles
it's rich. The same is true when you push the throttle back up. If it
just
cuts off quickly it's lean, if it bobbles and transitions poorly it's
rich.
All you need to do is adjust the air bleed screw. But you may need to
adjust it a bunch, not just in 1/8 or 1/4 turns. Give it a full turn or
two, run the engine again and see if it's better or worse. If it's better
but not great, give it another turn. If it's worse, turn it back and go
the
other way. Keep a mental note of how many turns you've got on it from
it's
original position so you can get back if you're not doing any good.
It's easy to do, you don't even need to know if your engine is rich or
lean
at an idle. Just try turning the air bleed one way and listen to see if
it's better or worse. If there's not much change turn it some more. If
it's worse, go the other way. Trial and error will find the direction you
need and then you can zero in on the best setting.
Dave
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