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Engines and Mufflers Having problems or need advice on Engines or Mufflers?


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Old 10-05-2020, 05:08 AM   #1 (permalink)
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Default Any OS 50 Hyper or regular Os 50 tunning video?

Any OS 50 Hyper or regular Os 50 tunning video?
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Old 10-05-2020, 03:57 PM   #2 (permalink)
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The OS engines are easy to tune.
There is a couple of good "generic" out there for tuning a nitro heli that are pretty good

Basically, you start with the default needle settings (to keep from burning out the engine).
Get it to idle smoothly first.
The you have to fly it. It will be under-powered at first because it is too rich. Lean the high needle no more than 2 or 3 "clicks" at a time and then fly it again.

At a certain point, you should start to hear it sounding better and feeling like it is delivering more power.
The trick is that as it delivers more power and you start pushing it harder, it will start running hotter. Don't over lean it. Too lean will ware out the piston sleeve and ring in a few seconds.

It's a flybar equipped heli (Raptor 50 - right), so the flybar adds a lot of drag, that means you cannot expect too much from the 50 / 55 motors
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