Idle increasing automatically LT F500F 2000 QRunner

[CunningStunt]

Bought her sat not running, cleaned up card, bypassed Petcock, new battery, and after fiddling with manual idle screw got it to start normally.

Well, yesterday I rode her for a few mins, no issues and left it idling in neutral while I ran in my house and heard the rpm increasing so I ran outside and hopped on and drove it back to my barn.

What can cause the idle to automatically increase? I am kind of at a loss...I've googled and can only find pages about how to adjust the idle.

[Tim-ANC]

Does the idle change when you turn the handle bars? Could mean throttle cable needs adjustment

[CunningStunt]

Not that I noticed...it was increasing idle while in neutral and rpm's kept increasing.  I am thinking its something in the carb although i cleaned it thoroughly...

[Buz49]

I have the same problem and cleaning the carb helped

 

[CunningStunt]

well, all i did was clean it up and reinstall the old components, i have a rebuild kit on the way and will install new jets and such when it arrives.  Thanks for ya'lls input

[CunningStunt]

Whats the best thing to soak the carb in and for how long?