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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › ys 91srx tareq break-in needle settings
02-19-2016 02:23 PM  4 years ago
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gt48

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Kingston, Ontario - Canada

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ys 91srx tareq break-in needle settings
Just wondering what needle settings people have used for break-in, specifically if the factory settings work well. I've been reading that the factory settings tend to be a bit lean, and I've noticed that as well. It's my first YS, it's on a 700 nitro pro, and I've run nitro helis before (OS) but still trying to learn tuning properly. I'm using an OS #8 plug and 22.5% rotor rage, and I burned up a new plug already in the first hover. I think I'll try leaving the low at 1.25 and richen the hover and high needles 1/4 turn past factory. Sound reasonable?
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02-19-2016 05:27 PM  4 years ago
Eury

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Mine are all richer than the recommended setting on 30% and an Enya 5. I forget off the top of my head but the low is about 1/4 higher and the other 2 are a half a turn or more richer. I haven't tried the OS plug in it, the guy I bought mine from said he had extremely low life on anything but the Enya 5.Nick Crego

Citizen #0168
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02-25-2016 03:48 PM  4 years ago
MikeG4936

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Irving, TX

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I break in at stock or slightly richer than stock settings. Enya 5 works well if the engine is tuned perfectly, but I found that the Enya 4 works better if you're keeping it on the rich side.
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02-25-2016 04:23 PM  4 years ago
gt48

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Kingston, Ontario - Canada

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Mike and Nick thanks for your replies. I'll be running it richer than stock to break-in. The day I tried it the temp was -10 C, I'm in Canada lol, and I haven't had a chance to fire her up again yet. I'm going to order some #5 and #4 Enya plugs from rcjapan and try them both running rich. I find it a little weird that YS has stock settings that seem a bit lean. Then again it's probably warmer where they are ha ha.
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02-25-2016 11:05 PM  4 years ago
ibepilot2

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Oklahoma City, OK

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Hey GT8,

I run Enya 3 , I'm running on break in , the Hover needle long one 2.0 out from close and 1.5 out from close on the high end , short one , leave the lower at factory settings until you get it broken in , may need some adjusting after the fact.
Running rotor rage 30% outside temps a little warmer than -10 c though,.. Lol.
Team Synergy, Rail Blades,Team Scorpion,Team FBL Rotors
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02-25-2016 11:46 PM  4 years ago
gt48

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Kingston, Ontario - Canada

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Interesting. I'll order some #3's too and see what works. Overall, I am getting the impression that the stock needle settings are on the lean side, especially in colder temps. It's actually been a mild winter up here, hovering around 0 C mostly, which is balmy lol. Just tried it on that particularly cold day cause it was sunny and calm, my buddy who a better pilot than me was over, and I had just finished setting up the bird, so I was wanting to fire her up. I'll be posting how she goes.
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03-12-2016 06:00 PM  4 years ago
gt48

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Kingston, Ontario - Canada

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Got it flying yesterday at my club field with an Enya #5. Started up fine after a few tries and isn't running lean anymore. But cyclic started shaking so I landed to adjust the cyclic gain on vx1n. After that couldn't get it started again. Put in fresh battery pack and changed the plug to a new Enya 5, still wouldn't start. Was getting pressure. A buddy tilted the heli for me and fuel was spitting out the exhaust deflector while cranking her. We blew it out and let it sit to dry. After a few more tries of starting I packed it in. Am using a dynatron starter so plenty of power there. I've always had problems getting my old os55hzr started so I took off the regulator and it always starts up fine now. Is there a trick to getting these regulated engines starting reliably? I'm now thinking the plug is too cold (it's still pretty cold up here) so I've put in a #3 plug and will try that today.
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03-12-2016 10:42 PM  4 years ago
ibepilot2

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Oklahoma City, OK

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Enya 3 should do the trick , FYI YS engines are sometimes a pain to start in cold weather, but once you get it broke in , you will be happy. You idle trim might need to be bumped up a little as well, I had to do that on all my YS srx s.Team Synergy, Rail Blades,Team Scorpion,Team FBL Rotors
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03-13-2016 12:06 AM  4 years ago
gt48

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Kingston, Ontario - Canada

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Enya #3 did the trick. Also leaned out the idle screw about 1/4 turn. Will try a #4 maybe in a couple of months when the weather gets warmer. Man, this engine has power compared to the align 91 that was in there before. Still breaking in too.
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03-13-2016 01:54 AM  4 years ago
ibepilot2

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Oklahoma City, OK

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It likes to run rich!!!Team Synergy, Rail Blades,Team Scorpion,Team FBL Rotors
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03-15-2016 04:39 AM  4 years ago
gt48

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Kingston, Ontario - Canada

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Rich relative to?
Funny thing, I was listening to the latest episode of the rc heli nation podcast tonight in which one of the hosts had sent in his 91 tareq for repair because the head bolts had loosened on his maiden and leaned out the engine. The repair guy told him his high needle was at 1.25 turns out, which was *way* lean. When told the manual states 1.25 turns out for break in, he said that's wrong and he'd have to contact the factory. He said 1.75 to 2 turns out is best for break in. So.. do you think the YS manual is wrong?
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03-15-2016 02:08 PM  4 years ago
ibepilot2

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Oklahoma City, OK

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IMO, Yea the manual is wrong, but with that in mind you have to take into consideration your area , environment , temp, elevation etc. I run mine as Richard says bot needles at 2.0 out for start.. start tuning to lean from there after a few flights. Keep in mind I have 3 of these engines and each one tuned differently, but all of them I started at that point 2.0 out .

Rick
Team Synergy, Rail Blades,Team Scorpion,Team FBL Rotors
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03-21-2016 12:07 PM  4 years ago
Richardmid1

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Leeds, England

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gt48, if your flying at -10 degrees C you want to be much richer than the factory break in settings.

If Tareq himself has done all the testing in regards to tuning, remember it is very hot where he is so his needle settings will be vastly different (leaner) than yours.

They should give a temperature and humidity vs. needle settings chart in the manual IMO.
IMO, Yea the manual is wrong, but with that in mind you have to take into consideration your area , environment , temp, elevation etc.
Sorry buddy didn't see this when I replied, you are correct.
60% of the time, it works every time!
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03-21-2016 01:46 PM  4 years ago
gt48

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Kingston, Ontario - Canada

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Richard, good point, makes sense, and thanks for reply. I'm running it now at about 1.85 turns on high and just past 2 turns on mid in about 0 degrees. Still breaking in but producing great power. Can't wait to lean it out a bit more as the weather warms up!
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04-19-2016 07:06 AM  4 years ago
cabeng

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South africa

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Watch at YouTube

some useful info
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04-19-2016 12:19 PM  4 years ago
gt48

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Kingston, Ontario - Canada

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Yes, great info and great flight, thanks for posting. My needles are now set to about where he has his post-break-in, 1.75 on hover and a bit less than 2 on high, and it's running good. I didn't go as high as 2.5 on break-in but if I get a 96 that's what I'll try.
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06-07-2016 02:59 AM  4 years ago
FLYERCLD

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Proctor, Arkansas

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I'm having a problem as well. I used a gal. of 30%, so I know the eng. is broke-in. My problem is once I complete a good hover the idle is all screwed up.

I can't keep it running. My settings are hover 2 turns out plus 3 clicks, and my high end is 2.0

my plug is a enya 4.

help please
Old pilots never die they just fade away
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06-07-2016 03:11 AM  4 years ago
gt48

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Kingston, Ontario - Canada

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I can't speak to your settings or plug. I did use an os#8 once the weather warmed up and I can say that mine idled pretty high too. The blades would spin on firing up the engine. Bringing the throttle down any more then engine would die. I just flew it that way, lol. Fire it up, jump out of the way of the spinning blades, lift into hover, go into idle 2, and have my flight. Didn't really bother me, the engine had tons of power. But for changing the idle I guess you should mess with the idle screw.
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06-07-2016 09:06 AM  4 years ago
FLYERCLD

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Proctor, Arkansas

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Thanks for the reply. However, do you know the factory setting for the idle screw? I will try a OS #8 and see what happens.

Charles
Old pilots never die they just fade away
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06-07-2016 03:09 PM  4 years ago
Richardmid1

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Leeds, England

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Have you tried the pinch test at idle once the engine is warm? The revs should increase slightly before it dies, if it revs up a lot for a longer time your too rich, if it just dies with no rpm increase after 2-3 seconds your too lean.60% of the time, it works every time!
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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › ys 91srx tareq break-in needle settings
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