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Home✈️Aircraft🚁HelicopterAlignT-REX 600N › Tuning a Hyper 50
04-03-2010 08:37 PM  10 years ago
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EdDrock

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Winter Haven FL USA

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Tuning a Hyper 50
Hi Guys,
I'm running a OS 50 hyper on CY 30% wild cat fuel if I pinch off the main fuel line and it just dies does that mean I'm to rich? It never leaned out and then died. I came of of winter flying and lean it out about 1/4 turn on the main.I'm now at just over 1 1/4 out and I temped it at around 185.

Thanks for all your help!
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04-03-2010 09:32 PM  10 years ago
outhouse

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auburn ca

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pinch test is for idle screw only.

main needle valve shoule be set to about 210F max with hard flying
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04-03-2010 09:44 PM  10 years ago
EdDrock

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Winter Haven FL USA

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Thanks Now it's coming back to me!

Ed
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04-04-2010 12:53 AM  10 years ago
Duckster

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Brunei

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if u pich test it dies less the 4 sec its lean on ur low or idle needle.. but do not change the factory setting... Check over ur fuel filter i guess it has some gunk that make ur engine lean.. Or service ur carb to make sure everything is cleanTrex 600,700 AND 450, GY611, GY401, OS5H, OS91HZ, MGP, HS65HB, Scorpion 2221-8,
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