[Phil]

Jerry;
You didn't say what type of cable you were using, and I can tell you that it will make a big difference in the quality of the cable. I have used cable throttles that push on the carb linkage...sounds awful backwards, but a good quality cable will do this with minimum of friction. A good quality cable should be really smooth to operate, and do it with bends minimally affecting the action. The last one we did actually returned to idle with just the spring supplied on the carb throttle shaft, but we added a spring to be safe. Also this puts a lot less bearing on the throttle shaft on the carb(s) which can wear out and cause hard to find vacuum leaks. Hope this helps.
Cheers
Phil