ORIGINAL: steinericj
The throttle arm location on the Magnum 120 does not allow you to use the stock throttle servo hole. The throttle arm on the engine puts the throttle pushrod between the top of the tank and just below one of the dowel pin holes in the fuse. Not an ideal location. Any ideas?
Dubro makes a small inexpensive throttle linkage kit for four strokes (also suitable for 2 strokes) that helps get around obstacles.
The arms are affixed to the engine mount and the throttle is then controlled indirectly via the linkage.
I just installed one on an O.S. 1.20 powered plane to overcome a similiar problem. Works great.