On the advice of my Chapter Tech Counselor I put a throttle stop on my throttle control. The WOT stop is the full travel of the knob at the instrument panel. The idle stop is a "B" nut on the control cable wire where the wire emerges from the sheath at the carburetor. The "B" nut will not allow the throttle control wire to retract past the idle point. The bell crank arm on the butterfly shaft has two springs that actually hold the shaft against the stops on the carb. The springs keep the bell crank arm tracking the butterfly shaft during operation between idle and WOT. The pressures on the carb butterfly shaft stops are limited by the tension of these two springs. Now there is minimal chance of breaking the butterfly shaft or the stops on the carb with ham-fisted operations in the excitement of the moment. Plus I have a much smoother and more positive feel on the throttle that I did not have before.
With all the mods (cg change, new gear legs, new trim control, unbalanced elevator, new throttle, new oil cooler and ballast weights) I am treating the next flight as a first flight. Relocating the flap handle or perhaps an electric actuator is still on the "to do" list. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA
