My ZC idles very high. I have set the idle and everything there is good. It appears that when I let off the gas the throttlebody does not spring all the way back to the closed position, it is sticking slightly open. Is there anyway that I can adjust the tension on this spring or should I go ahead and change out the throttlebody? Any other suggestions would also be greatly appreciated.

Thanks

 

if you look at the throttle cable it is pretty self explanatory. Also check 4 a vacume leak. And last did you get your tb ported?? because that sometimes happens with ported tb's.

 

Thanks rainforest but it has nothing to do with the throttle cable. The return action on the butterfly is not good. It sticks before it closes all the way causing the engine to idle very high. It has not been ported. I was wondering if anyone else has had this problem, if so what did you do to correct it? I have a spare throttlebody and thought the easiest thing to do may be to just change out the throttlebody. Thanks again for any and all responses.

 

I think I have over looked the obvious here. I am going to get some cleaner and see if that will help with the sticking. Any further comments are welcome.