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11-29-2011 10:33 PM  5 years agoPost 1
T 3d

rrApprentice

Boston Mass

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why is my ys56sr so hard to start and what i mean by that is it well start but at first it takes for ever to get the fuel to get to the carburator and when it reaches the carborator it still cranking the engine over and over for 5 min before it starts.what am i doing wrong and its at factory setting for the needle

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11-29-2011 11:06 PM  5 years agoPost 2
airdodger

rrElite Veteran

Johnston USA

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Try opening the idle screw some.

Chris

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11-29-2011 11:10 PM  5 years agoPost 3
barely can fly

rrApprentice

oxford ga. usa

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My ys56 idle needle set at just a tad over a turn out, once you prime the fuel system it will start immediately.

ATLRC wrecking crew / NCRC

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11-30-2011 12:41 AM  5 years agoPost 4
T 3d

rrApprentice

Boston Mass

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ys 56 sr

gut isnt the idle screw at factory set and shouldnt be touch.also when your finish flying am i sappose tp pinch the fuel line to shut it off or is that on other engines

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11-30-2011 03:20 AM  5 years agoPost 5
barely can fly

rrApprentice

oxford ga. usa

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Set idle to what ever is necessary for the engine to start well and idle properly.
Personally i never pinch a fuel line to shut down the engine as it causes a momentary lean run, unless i accidentally run out of fuel i try to avoid any lean conditions.
Others may tell you pinching the fuel line to kill the engine won't hurt a thing, in the end it is your engine and you will have to decide how you want treat your engine and shut it off.

ATLRC wrecking crew / NCRC

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11-30-2011 12:38 PM  5 years agoPost 6
Chuckie

rrKey Veteran

Crofton Maryland

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gut isnt the idle screw at factory set and shouldnt be touch
Who says you can't adjust your engine? Maybe the factory set it incorrectly. There is no harm in checking to be sure. Note where the slot is on the carb and turn in counting how much it goes in. 1 turn out is recommended starting position but in cold weather I run richer setting, 1 1/8 or more as needed.

I won't pinch the fuel off until the end of the day and that affects how the motor starts the next timeout. When starting the motor for the first flight of the day I keep the glow off, go to full throttle, and then turn the motor over for a few seconds with the fuel clamp open. You will hear the motor get wet with fuel. The close to idle, light the plug and start the motor. While I'm flying though out the day I will use the tx engine kill switch to stop the motor, that way it's easy to start the next time, no need to prime the engine. At the end of the day with the motor at idle I'll close the fuel clamp to the carb or pull the line from the carb to drain all the unburnt fuel. Then light the plug again and turn the motor over several times to burn off all the fuel. There is still oil in the motor but the nitro/methane is burned off. Some recommend adding after run oil to protect the motor and this helps to lubricate the motor the next time you go out flying and do the procedure I mentioned above.

Burning off the fuel in the motor at idle is not the same as flying/hovering and running the motor out of fuel. Flying out of fuel will cause a lean run that is not good for the motor.

Charles

Please stand by for faster service!

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11-30-2011 05:27 PM  5 years agoPost 7
dasd

rrVeteran

Carol Stream, IL

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I had a similar experience with my YS56. I opened the idle needle a little bit from YS recommendation and I always pressurize the fuel tank before the first start of the day. You have to get the engine "wet" and some pressure or you will have hard starts.

Formerly SunFunFlyer.

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11-30-2011 06:02 PM  5 years agoPost 8
Zaneman007

rrElite Veteran

Texas - USA

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Adjusting the needles is a must, if you want it to run correctly using your fuel and at your altitude.

If you are cranking it for 5 minutes you are way past the priming stage.

Old Guys Rule!

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11-30-2011 11:39 PM  5 years agoPost 9
aliosha323

rrApprentice

Los Angeles,​California

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Also, make sure the check valve is oriented properly... Just food for thought

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12-02-2011 03:09 AM  5 years agoPost 10
T 3d

rrApprentice

Boston Mass

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ys 56 sr

i would like to thank every one for there replie .i turn the idle needle a little counter clock wise and so far so good . thanks

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