Rough running

[Roachdogg28]

i recently bought a 95 gs500e with 29k miles, for 900 bucks, it needed some carb work the way it sounded, then i found out it has about 2 cups of rust in the tank, i got most of it out and cleaned the carbs like 8 times, its running but it runs rough and cant find a idle spot, at start it likes to die, when its warm it likes to rev to about 4k rpms, then i adust the idle screw and it dies, idk exactly the prob, any help? maybe carb leak? no gas falling maybe air leak?
Thanx

[The Buddha]

Maybe air leak, maybe more rust came up, maybe stuff is clogged in the carb. Rust gotta be treated and coated ... else it will keep comming back.
Cool.
Buddha.

[Roachdogg28]

no rust is getting through my automotive paper blade fuel filter haha., but thanx for the tip, i also got done synching the carbs, but im wonderin if there is a writeup on how to adjust the fuel mixture accurately, cuz guessin doesnt work great.
thanx