Builders are better than ARFers.

And Glow is FAR better the electric. Everyone knows that.

Scratch builders rule!!!! LOL

Do as you please but I use a quality servo and clip the spring ends off the spring, been doing it this way for a good many years.

Bob

When one considers the forces transmitted to a servo by the deflection of a control surface into the air passing over the model at speed the force transmitted to a throttle servo from the throttle spring seems miniscule in comparison. If a servo is going to suffer damage/failure due to the small amount of force from the throttle spring one has to wonder if the servo should be used at all. In all my years flying gassers I have never removed/altered the carb spring. The only concession I ever made was when there was no end point adjustment and a servo saver was used so the servo was never stalled out at the end travel of the carb.

Dennis

I was going to make a rude comment about "everyone has one", but I bit my tongue..... Tee hee.

AV8TOR

Kinda like an oil thread and Chevy vs. Ford. We all have our preferences. In my opinion the engineers design in the spring for good reason, so i leave it in place and functional. Use a decent servo (not something for a park flyer)

While I do leave the spring connected with a Walbro style carb, I also understand that these carbs were not intended for our use, and certain things need to be changed when using them in an RC aircraft, the first and most important, throw away the throttle stop screw that is needed on typical lawn equipment, since it's important to be able to kill the engine from the radio via the throttle servo. Also the hole in the choke plate is there to reduce the chance of flooding the engine with a pull start and to allow the engine to actually run real rich with the choke fully on. I find that my gassers hand start easier with the choke hole soldered over.
Pete

One would think that the hole on the choke plate doesn't have any affect on the start because the choke plate is open when starting the engine.

After speaking to the tech rep, I am going to be in the " leave the spring in place camp". I am using a good servo so I will see how that goes. Thanks for all the replies.