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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › YS 50 from Info Please
02-08-2008 10:26 PM  10 years agoPost 1


Long Island N.Y U.S.A.

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I have always used OS engines heard alot about YS so here is my question. No 3D only FFF would the YS50 be happy on 15% Thank you for any input.

Rest in Peace Roman Jr

02-08-2008 10:47 PM  10 years agoPost 2
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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In the instructions that come with the motor Yamada recommends 30% nitro. I have seen the engine perform well on 20%.

I would think you will be okay but the motor is going to lose some punch and as it will be set leaner because of less nitro it might have a negative effect on cooling and wear.

02-08-2008 11:08 PM  10 years agoPost 3

rrElite Veteran

Lewisville, TX

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I run mine on 15% PowerMaster, and it does fine. I don't do much 3D, but the power is still very impressive, and it runs like a top!

- Tim

02-09-2008 04:17 AM  10 years agoPost 4


Cedar Rapids, IA

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I've run 15% Sig Champion fuel in my YS for a year now, it's quite happy and runs quite well.


* Making the World Better -- One Helicopter at a time! *

Team Heliproz

02-09-2008 01:22 PM  10 years agoPost 5



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I'm running 20% and It will do climbing tic tocs without a hick, pulls 12.5 deg without the slightest bog and aileron tic tocs could last days in a row.

I really can't see the diference to 30% that would justify the price. I only use 20% to keep tuning easier. If I were an expert, I would get away with 10% for sure


"Perfection and patience usually walk side by side..."

02-10-2008 02:50 PM  10 years agoPost 6
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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Being a ys run what you want just keep an eye on temps If you need more power and temps are high you need more nitro , higher nitro gives more power and cooler temps

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