Throttle-Arm “Standoff”

Sometimes, the throttle pushrod has to be offset to clear something, and some 4-stroke engines, e.g., the Enya 120, could use a standoff as a matter of course. You can put this one together with a piece of Sullivan yellow nylon tube, a no. 2 sheet-metal screw and the ball part of a ball joint screwed into the tube. Adapted from 400 Great R/C Modeling Tips by Jim Newman, Volume II, an Air Age Media...