Basic Settings for TT39 Pro-H

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Tim - 24 Aug 2003 18:38 GMT

Foolishly, I failed to stick to the adage of "if it ain't broke, don't fix
it"...

I tried tweaking the settings on the TT39 Pro-H engine in my Raptor 30 and
coupled with one or two other things, I now have an engine that refuses to
start, no matter what I try and do!

Please could someone with experience of this engine suggest approximate
needle settings for me, so that I can get it up and running again?

Thanks very much,

Tim

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Philip Martin - 25 Aug 2003 15:15 GMT

> Foolishly, I failed to stick to the adage of "if it ain't broke, don't fix
> it"...
[quoted text clipped - 5 lines]
> Please could someone with experience of this engine suggest approximate
> needle settings for me, so that I can get it up and running again?

As I recall, the way I got the start setting for mine was:

Note the position of the throttle barrel at the low idle point. Then remove
the carb and set the throttle barrel to this point. Now looking from below
at the gap between the needle and the small brass tube, use the low needle
setting to set the gap between them at 1/16th of an inch. This will give you
a starting point, fairly close to what is required to get the engine tuned
in.

Phil Martin.

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Tim - 27 Aug 2003 13:51 GMT

> > Foolishly, I failed to stick to the adage of "if it ain't broke, don't fix
> > it"...
[quoted text clipped - 16 lines]
>
> Phil Martin.

Hooray!!

Got it going again. Thanks for your help.

Now off to crash it...

Tim

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Model Forum / Radio Controlled / Helicopters / August 2003

Basic Settings for TT39 Pro-H