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ys120 nc

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Old 08-17-2004, 07:06 AM
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109nut
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Default ys120 nc

I recently purchased a second hand Ys120NC in what appears to be excellent condition. I have it installed in a 60 size Dragon Lady. It starts great and idles sweetly.
I have read numerous posts about how these engines are Nitro pigs, however I wish to run all my engines on the same brew (OS,Saito,Magnum,Leo).
I mix my own and Nitro is expensive here in Australia., and I am only sport flying.
Currently I have a MA 16 x 8 prop on it, 15% Nitro and 18% synth oil. It is tached at 8200 at 880ft AMSL. Is this about the right rpms for this engine prop combination??. .Would another 5% Nitro really make much difference??? Would I obtain any real benefit from piston porting this engine??

Your comments will be appreciated
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Old 08-24-2004, 12:40 PM
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Dave Shadel
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Default RE: ys120 nc

Sounds like it runs just fine. The only reason to add nitro is for better idle and transition. The earlier YS engines run fine on the fuel you are using.

Good Flying!
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