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HomeAircraftHelicopterGasser Model RC HelicoptersEngines › Throttle sticking on new OS105hzr
08-15-2017 02:05 AM  11 months agoPost 1
AaronBmore

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baltimore,md, usa

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After breaking in my new 105hzr in my black nitro goblin, i got it home on the bench to look it over

I took the throttle link off the horn on the motor. When opening the throttle its as though something is dragging. Its hard to open all the way.
It will open but it is not smooth as it should be. Once open it will close smoothly

Someone please help!

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08-15-2017 02:22 AM  11 months agoPost 2
wjvail

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Meridian, Mississippi

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Remove the carburetor barrel and inspect and clean. Have a serious look at this part and where it seats -> http://www3.towerhobbies.com/cgi-bi...p?&I=LXBJRD&P=Z

You will likely be able to access the part without removing the engine or carburetor from your helicopter. Should be a pretty simple job. Removing this part should let the barrel slip out. -> http://www3.towerhobbies.com/cgi-bi...p?&I=LXXYK6&P=Z

I would look carefully for a spec of debris. Let us know what you find.

"Well, Nothing bad can happen now."

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08-15-2017 02:27 AM  11 months agoPost 3
AaronBmore

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baltimore,md, usa

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Wjvail, thanks for your quick and detailed response. How did you get those links so fast?

I was worried i would have to remove the whole motor. Thanks first chance i get, gonna take that apart and have a good look.

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08-15-2017 03:22 AM  11 months agoPost 4
wjvail

rrKey Veteran

Meridian, Mississippi

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I'm very sorry. This job just got a little harder. You will also have to remove the "rotor guide screw". It is on the side of the carb near the servo arm. It is listed as part #5 in the manual. See here, page 45, part #5 -> http://www.os-engines.co.jp/english...al/91hz_r3d.pdf

I don't think you will be able to access this screw without removing the carburetor from the engine. You might be able to loosen the carb and rotate it enough to gain access and on many models you can remove the carburetor from the engine with removing the engine from the helicopter. Barring that, the engine will have to come out to remove this screw.

Bill

"Well, Nothing bad can happen now."

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