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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › how is the best way to turn off/kill the motor?
04-02-2009 03:54 AM  9 years agoPost 1
wowowee

rrNovice

too cold here

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hi every1....
how is the best way to turn off/kill the motor? after flying..have a dx7...use the throttle cut(via trim) or pinch the fuel line?
...
thanks..

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04-02-2009 04:25 AM  9 years agoPost 2
Ghostrider

rrElite Veteran

San Diego, CA

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I don't know if it's the best way but I have always used throttle cut.

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04-02-2009 04:42 AM  9 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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The trim thing works just fine, especially if you have the throttle recovery feature enabled in the TX.

Of course, you should have one of those little KSJ fuel line clamps between your filter and the carb nipple, those little devils work fine, too.

-----
Dave

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

Team Heliproz

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04-02-2009 04:45 AM  9 years agoPost 4
RayoVac

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raptor4ever is a THIEF!!!

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I have been told throttle cut with trim. All the guys I fly with do it that way.

Would the fuel line pinch be something you would want to do if you were loading up after landing and coming to idle? Other then that I guess I am not sure why you would want to do it.

I am just learning the Nitro world myself... so it would be interesting to hear what other folks have to say.

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04-02-2009 04:47 AM  9 years agoPost 5
RayoVac

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raptor4ever is a THIEF!!!

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dkshema,

When you refer to "throttle recovery feature" are you talking about having your throttle hold switch setup to idle the motor?

I have mine so you kill it with trim, low stick. If the throttle hold is on, it will idle regardless of trim or stick position.

Just trying to clarify the terminology.

Rayo

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04-02-2009 04:49 AM  9 years agoPost 6
baddynergy

rrElite Veteran

sierra madre, ca- usa

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Of course, you should have one of those little KSJ fuel line clamps between your filter and the carb nipple, those little devils work fine, too
Yup, I clamp my fuel line off. Look at the bonus you get, you dont forget to clamp so you dont hydro-lock, no messing with the trim (ever) and you've already run enough fuel out of it that you dont have to fire it up and keep trying to dry run it to make sure all the fuel is run out of it(personally I think dry running helps kill bearings). It is a win win..

**Unattended children will be givin a shot of espresso and a puppy**

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04-02-2009 04:50 AM  9 years agoPost 7
RayoVac

rrVeteran

raptor4ever is a THIEF!!!

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BaddRaptor,

Do you end up leaving the line clamped all the time then? Or do you empty any remaining fuel from the tank then un-clamp?

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04-02-2009 04:54 AM  9 years agoPost 8
rccarguy

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Boston MA

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I like the fuel line clamp method, mandatory with the YS 61 in my Fury to prevent flooding from the remaining pressure in the fuel tank.

XCell Spectra G
Radikal G20
Some obsolete nitro helis too...

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04-02-2009 04:56 AM  9 years agoPost 9
baddynergy

rrElite Veteran

sierra madre, ca- usa

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Or do you empty any remaining fuel from the tank then un-clamp?
Nope, I fill the tank and then drain to just under the fuel outlet grommet, keeps the fuel magnet wet (pushes all exhaust gases out also).
But yes, it is clamped ALL the time. I have found that even just sitting around on the shelf, the ever changing atmosphere creates some pressure in the tank, flooding the engine.

**Unattended children will be givin a shot of espresso and a puppy**

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04-02-2009 05:09 AM  9 years agoPost 10
dkshema

rrMaster

Cedar Rapids, IA

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Clamp the line as long as you've got fuel in the tank, simply to keep it from siphoning out through the carb, and perhaps filling up the cylinder, leading to a hydraulic lock. With the cost of fuel these days, you don't want to be watering the flying site with it accidentally.

At the end of the day, I empty the tanks, then open the clamp and run the motor and lines dry. Leave the clamp open when the tanks are empty, the fuel line will thank you.

-----

Apparently, if you use a fuel magnet on your tank's internal plumbing, you need to keep the darn thing wet with fuel to prolong its life. In that case, it's up to you to figure out how to keep the fuel from leaking out while the clamp's open and the heli's just sitting in your shop.

-----
Dave

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

Team Heliproz

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04-02-2009 05:15 AM  9 years agoPost 11
Dood

rrProfessor

Wescanson

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If I'm on muffler pressure, I'm all about cutting it with the throttle (trim or cut switch)

With the muffler pressure, the tank is self venting. Never had a problem with the engine flooding doing it that way.

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04-02-2009 01:00 PM  9 years agoPost 12
wowowee

rrNovice

too cold here

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ok got it..use trim/switch to turn off, then clamp fuel line
thanks every1..

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04-02-2009 05:55 PM  9 years agoPost 13
chopper_crazy

rrElite Veteran

Delphos, Ohio

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I just clamp down the fuel line until it starves and dies

It's a complex, costly, glow powered anti-gravity machine!

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04-02-2009 05:57 PM  9 years agoPost 14
Jamin_00

rrApprentice

Essex UK

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I use trim if I am going to fly after but if thats the last flight of the day I pinch and starve.

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04-02-2009 06:01 PM  9 years agoPost 15
trunkmunki

rrApprentice

Bangor

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When you refer to "throttle recovery feature" are you talking about having your throttle hold switch setup to idle the motor?
You kill with the trim, and one click up after you reach max down puts the trim back where it was. It is a programmed feature of the radio.

The engine should not die on throttle hold.

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04-02-2009 06:02 PM  9 years agoPost 16
Dood

rrProfessor

Wescanson

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Why not plug the exhaust with a finger?
I've done that a time or two on a heli (after a crash, though).

Thats also how I shut down my little RC car.

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04-02-2009 06:05 PM  9 years agoPost 17
trunkmunki

rrApprentice

Bangor

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Or put a potato in the exaust pipe.

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04-02-2009 06:16 PM  9 years agoPost 18
PJRono

rrKey Veteran

Minnesota, Ya!

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Just hit the ground really really really hard or use a banana in the exhaust pipe (not a potato, I like Potatoes!)

If you skip me I can't play!

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04-02-2009 06:28 PM  9 years agoPost 19
trunkmunki

rrApprentice

Bangor

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Oh yeah, a banana, I haven't seen that movie in a while.

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04-02-2009 08:05 PM  9 years agoPost 20
LONEWOLF2440

rrElite Veteran

MYRTLE BEACH S.C

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i use the clamp on mine

MIKADO LOGO 600 TREX 550

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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › how is the best way to turn off/kill the motor?
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