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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › OS 70 engine tuning
04-02-2009 06:41 AM  9 years agoPost 1
stargate

rrApprentice

anderson, sc

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high end needle setting: i know it's not exact, but how far is the high end needle turned in using 30% fuel.

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04-02-2009 04:04 PM  9 years agoPost 2
gftazz

rrVeteran

upstate N.Y. in the Adirondacks

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Im around 1 1/2 to 1 1/4 on high, 1 turn on the middle and I think I will go out to 1 1/2 to 2 to try to get out the lean spot at about 1/4 throttle as I advance the throttle open. Low is pretty much factory. I run 30% with an OS#8 plug and the Hatori OS70 muffler on a Raptor

Oh No Someone Please Stop Me Before I Go Broke With This Heli Thing!!

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