Motorcycle Repair: gold wing carburetor, honda gold wing, honda gold wing gl 1000

Question
-------------------------The cable seems fine, no apparent sticking and the 1/4" play is there.  What's next.
Jeff
Followup To
Question -
Chris, I just rebuilt the carbs on a 76 honda gold wing, gl 1000, with keihin carbs.  they're in and running but when i start the bike it revs and holds steady at over 4000 rpm (probably much higher, apparently i have a sticking tach as well).  the idle set screw is all the way out.  pulling the choke cable drops the rpm.  where should i start looking?   
Answer -
Hi Jeff.
 Have you checked the tension and freeplay on the throttle cable or does the throttle cable sick?  There should be about 1/4" of freeplay on the throttle before it engages.  If it is less than that, the throttle could be slightly engaged all the time, thus producing the rpm problem that you are experiencing.

Start with that and let me know what you find.
Good luck.
FALCON

Answer
Hi Jeff.
 On the older bikes, the carbs were, as often as not, designed with the needle valves being able to be slightly adjustable.  

Usually, the needle valve had 3 positions (3 slots cut at the top of the needle valve).

 The lowest position would have the needle highest in the carbs and the highest position would, of course, have the needle in the highest position.  Check the position of the valves, if you have that type, and try adjusting them all to the same.  If it is still revving high and it is not in the higher positions, then try it in steps in the higher positions.

If you have the type that has a fixed needle valve, then the needles could be worn down, allowing too much fuel to be drawn out at idle, causing the rpm's to rise.

I can't think of anything else that would cause this kind of problem.

Let me know what you find on that.
Good luck.
FALCON