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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › needle setting for ys SR with sb19
04-25-2009 01:40 PM  9 years agoPost 1
joseph manalac

rrNovice

uk london

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need help to tune my sr. i think i messing the needle setting can some one help me to reset the low and high end needle. i want to know how many turn. im running 30% magnum fuel thnks

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04-25-2009 02:16 PM  9 years agoPost 2
ch-47c

rrElite Veteran

san jose, ca

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Joe,
Here is the website for YS engines. Has a downloadable manual.
http://www.yspartsandservice.com/

Break-in Running
Hover 1.75 1.75-1.50
Low 1.25 0.75-0.50
High 1.25 1.25-0.75

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04-27-2009 12:56 PM  9 years agoPost 3
helicopterMark

rrKey Veteran

Rumson, NJ

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For what its worth, on a fully broken in ys91sr with sb-19 on an 84 degree day at sea level

Low 3/4
Hover 52 clicks out = 1.48
High 23 clicks out = 0.92

Mark Schneider
Team Heli Wholesaler; Rotor Rage; YS; Perfect Regulators
www.helimark.com

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