Carb problem: Overheat, stuck-RPM, IDLE-jumps
Engine on my KLR behaves strange now. My idle RPM is floating. I set it to 1300 as it's listed in manual, but quite often it goes to 2000 and then stuck there. Then it can go back randomly. This leads to overheat, backfire and unstable start - bike dies without a choke when it's cold and by cold I mean normal +25 around. Also on idle I hear not backfire, but some sort of piu-piu sounds. Because of backfire and overheat I thought that it runs too lean, but adjusting a pilot screw half turn out didn't solved the problem and seems made it even worse. Also my fuel consumption is weird now.
I want to take carb off and clean it, but which parts should I check first? Main jet? Maybe slider stucks in opened position? Friend of mine also told that it looks like bike suck air through manifold, but I can't find a new part for my KLR600. Please, give me your hints.