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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › Hard to start my YS
02-04-2010 06:42 PM  8 years agoPost 1
Tommy8275

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Mount Juliet, TN

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Why my YS91SR hard to start? Every time I tried to start my engine (first flight) it took me atleast 2-3 mins to came on. But not happened after second tank I kept crank it about 2-3 mins with my throttle stick up and down. It just happen this winter. I do have the same engine with my other 700 it start fine.

Tommy K

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02-04-2010 07:20 PM  8 years agoPost 2
SC Raptorman

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South Carolina

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My new 56SR does the same thing as you are saying , kindy believe thats the way they do as it has to build pressure to get the fuel to the carb . Once it runs it has fuel already there in the line to run .

Oh what a feeling 3D Flying can be
Magnum Fuels

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02-04-2010 09:43 PM  8 years agoPost 3
Ghost Rider 414

rrApprentice

Hendersonville,NC. USA

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SC Raptorman hows that ys doing as good as your 53 with mod did you have any problems putting it in your raptor.

Jerry
AMA 891553

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02-05-2010 11:41 AM  8 years agoPost 4
SC Raptorman

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South Carolina

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The YS is not as powerful as the TT53 with my mod on it , it does run good and consistent though , it was very tight fitting into the Raptor frames and had to trim some but really no big deal .I have the 630 Swe`s on it and slings them with ease at 2100 head speed . The TT has more revs but the YS has more torque in the mid though so its a trade off .

Oh what a feeling 3D Flying can be
Magnum Fuels

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02-05-2010 11:55 AM  8 years agoPost 5
jermo

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Fort Mill, SC - USA

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One trick I learned was from the manual. With the glowstarter disconnected, open the throttle up all the way, use the starter to run about 6 seconds or so, then throttle to idle/start, connect the glowstarter and start it..

mine fires up first time, every time, when following this so far. I've only started it in the winter. We'll have to see what happens in the summer.

Jermo

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02-05-2010 12:20 PM  8 years agoPost 6
SC Raptorman

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South Carolina

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Good tip Jermo I will have to try it that way . Thanks

Oh what a feeling 3D Flying can be
Magnum Fuels

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02-05-2010 08:18 PM  8 years agoPost 7
jermo

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Fort Mill, SC - USA

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Let us know, and you're welcome.
Jerry

Jermo

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02-05-2010 08:21 PM  8 years agoPost 8
Ghostrider

rrElite Veteran

San Diego, CA

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One trick I learned was from the manual. With the glowstarter disconnected, open the throttle up all the way, use the starter to run about 6 seconds or so, then throttle to idle/start, connect the glowstarter and start it..

mine fires up first time, every time, when following this so far. I've only started it in the winter. We'll have to see what happens in the summer.
That is exactly how you do it.

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02-06-2010 05:08 AM  8 years agoPost 9
lowflyer101

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garden grove, CA

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my ys start every time, no trouble whatever, when you get new ys. be sure recheck all factory needles setting.. they are too rich, hard to start and have little power. reset them thought manual.

i been thought os 50/ redline 53 and now ys 56. once you it settle in/ tunning - it more power than anything i ever tried.

the redline 53, unless you do carb mod, my personal experience- its a piece of sh*t

<-freedoom flyer->

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