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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › Thunder Tiger 90H Engine Tuning Problem
04-26-2010 02:35 PM  8 years agoPost 1
dos boss

rrApprentice

Broken Arrow, Oklahoma - USA

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I just purchased this for my 700 and having a little trouble tunning it. (I previously had YS91SR and just had trouble with it from day one, not all tuning issues but lots of other problems)
I can't find anywhere in the TT documentation that came with the engine to tell me where to set the Low End Needle. It says to set the High End needle open 3 turns for break in so I set both needles to 3 rounds open and ran 6 tanks thru it per the instructions. It ran but had no power which I expected but now I have 10 tanks run thru it and have been trying to lean it out for power and it seems good for a short while then the engine goes lean. Richen it back up a couple of clicks on High then have problems transition and no power.
Any help would be greatly appreciated.



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