my new clean carbs idle a 5000 rpm

[fuelcat]

I bought carbs from ebay, cleaned/rebuilt them and put them on my bike. The bike did not start up right away so I sprayed some starting fluid in the air intake and it started with a vengeance! It was running at 5000 rpms and I unscrewed the idle adjustment knob all the way out. what do I need to adjust?

[tkent02]

Throttle cables?
Maybe the throttle adjustment screws on top?
Wait, which carbs are we talking about?

[fuelcat]

its mikuni carb on a 1981 gs550l

[robertbarr]

Badly unbalanced carbs, or an intake leak.

More than likely unbalanced carb butterflies. Look for 'bench sync' using the search function and you'll find plenty of info.

[loud et]

Hey there fuelcat... welcome to the forum. Have you introduced yourself in the GS OWNERS thread? If not take a minute and post in there to let us know a bit about your self and your bike. You will receive a welcome message full of great information! Also , go to "QUICK LINKS" in the blue bar above and choose "edit signiture" from the drop down menu....enter your year and model of bike, that way we all know what bike you have and we can give you bike specific information when you ask a question.
You also should so a forum search (above also) for bench syncing your carbs. Start there with a basic bench sync to assure your within proper running carb settings. Before you get to fine tuning.

[Nessism]

As mentioned by others...

- make sure throttle cable not binding. The carbs should snap back to idle position with a thunk when opening and releasing the throttle cable

- make sure the bench sync is close

- Replace the intake pipe boot O-rings if you haven't already done so. Also, replace all O-rings inside the carbs if you haven't already done so and make sure the airbox is proper sealed and the filter is clean.

Carb rebuild tutorial and Newbie Mistakes thread linked in my signature.

[fuelcat]

I think the choke or throttle cable was binding. I got it work now! Yeah!!!!THank you!