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Vario Sky Fox - Benzin - Evolution - Xtreme > Benzin , throttle question
 
 
tim225
Senior Heliman
Location: N Wales (UK)

I have set up my throttle linkage as per Christopher J's information
Quote 
Remove the stock throttle arm from the engine Carb. (if you have not already) and add the Vario one shown on pg 1 of the directions. Do not add thread lock yet. Swing the butterfly and find the halfway point. Move the throttle arm so it is square to the side frames; tighten.

Power up the servo and go to the halfway point. Hold the Carb. open to the half way point. Measure the length from horn center to horn center. Adjust the length of the push rod. Attach the clevis to the carb. arm. (you may have to remove the Carb. to do this) Check that the ball link is over the ball on the servo while at half stick. Check you high and low settings and adjust you ATVs as needed. Make sure you are no more than a 10 point spread. If it is more then start over on the set up; recheck servo center and Carb. arm centering.

Once set up and at low stick the screw for the Carb. arm can be removed and thread lock applied.

Now when I operate the throttle until it hits the stops both ends I find I have to alter atv to 48% on both low and high stick to prevent my servo buzzing.
The whole set up took a long time to get the atv's the same in both directions but the question is, is 48% acceptable/ normal for this heli?
Thanks
Tim

Vario Bell 230 Gasser,Vario Benzin Trainer,T-Rex 600N, Hirobo Shuttle Plus,Century GL450SE
04-22-2008 08:36 PM
 
 
East Coast Scale
Key Veteran
Location: Taxachussetts

You will see that if the ball on the servo end is far away from the center of the servo horn, less ATV's can be obtained. I stay within 10-12mm from the center of the servo, and can get almost 70% either way. In any case, it should be fine, unless you try to use a govenor.
Joe
04-23-2008 12:24 AM
 
 
tim225
Senior Heliman
Location: N Wales (UK)

Thanks for the info Joe, I will alter mine to try to achieve the 70% that you aim for.
Cheers
Tim

Vario Bell 230 Gasser,Vario Benzin Trainer,T-Rex 600N, Hirobo Shuttle Plus,Century GL450SE
04-23-2008 08:40 AM
 
 
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Vario Sky Fox - Benzin - Evolution - Xtreme > Benzin , throttle question
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