Carb (throttle) Horn (Full Version)

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gphil -> Carb (throttle) Horn (11/13/2012 4:20 PM)

I have a old Thunder engine .61 that has a OS  carb on it that is missing a control arm.  I can find new carbs but no arms.   Can one convert a control surface arm to go on the carb.   This one is held in place with a screw.  Seems like you could drill a arm and put it on.   What would you suggest?   I could just get a new carb but that  50.00      gphil 



da Rock -> RE: Carb (throttle) Horn (11/13/2012 4:54 PM)

The carbs that are in production have those arms available for a couple of dollars. Tower Hobbies



da Rock -> RE: Carb (throttle) Horn (11/13/2012 4:57 PM)

Can you upload a picture of the carb?

Since you bought the OS carb, do you know the part number for the carb? Tower will list the carb and it's parts.



gphil -> RE: Carb (throttle) Horn (11/13/2012 5:06 PM)

Carb came on engine and old style I assume.   No back angle on needle.   No #  jus says "made in japan"  I was thinking maybe a servo arm???



R8893 -> RE: Carb (throttle) Horn (11/13/2012 5:59 PM)

You can use any arm that you can modify to fit. Been there, done that.
Chuck



Gray Beard -> RE: Carb (throttle) Horn (11/13/2012 6:41 PM)

If the screw is in the center then most any arm will work. I use a lot of the arms that you find on the LA series of engines. I even use them on YS engines. My LHS usually has them in stock, they are about 2 bucks.



Bozarth -> RE: Carb (throttle) Horn (11/13/2012 10:28 PM)

I have used a nylon futaba servo arm on an OS 1.40RX for years. Works perfect.

Kurt



JohnBuckner -> RE: Carb (throttle) Horn (11/14/2012 5:36 AM)

Have used so many servo arms on that type of carb you tend to loose count or is it perhaps because every time one is broken its usually because I just crashed[:D]

John



AdamsBro -> RE: Carb (throttle) Horn (11/15/2012 2:37 AM)

My vote is for the servo arm I have seen it done many times and have used it myself a few times as well.. Not much stress on a throttle arm, or atleast there shouldnt be haha.
Good luck
-Steve E



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