ORIGINAL: w8ye
If you have a metal throttle arm, you must use something plastic for a connector to the throttle arm to keep from producing RF noise.
Or you could use a plastic control rod
http://www3.towerhobbies.com/cgi-bin...&I=LXK091&P=ML
http://www3.towerhobbies.com/cgi-bin...&I=LXFV42&P=SM
OK, I understand the RF thing, but how does it get in to the system? The problem is I have very little room in front of the firewall. MinnFlyer's drawing will work, but there will be metal/metal contact with the bent push rod and the throttle arm. A ball link will have to come in from the rear and there's not enough room. The carb on this motor is smack-dab in the middle and I can't loop forward to connect. It has to come in from the side or rear.
How about cutting the music wire push rod and inserting a nyrod somewhere in the middle? Is it the actual interface of the metal rod and the metal throttle arm the problem? I was assuming that the noise would transfer down the rod to the servo and get into the radio that way. It would seem that the plastic servo arm would isolate that if this was the case.