great! another usefull post from you!
try taking the airfilter off and checking if the carby piston is positioned correctly and not stuck to high, i would suspect you put it together wrong but its hard to know what you did wrong, if the revs dont decrease like they should after you back off the throttle try lowering the idle.
+1 , Bulldog pull your head in. Your posting alot of shit at the moment for your post count.
Take the filter off , sounds like your slide isnt sitting correctly , this can be deceving. Make sure your slide is in correctly ie the wide slot down the side of the slide is sliding into the idle needle which goes through the walls of the carb. You want a 1-2mm gap between bottom of the slide and the floor of the carb inlet. Your slide might be getting caught on the slide. Try inserting the slide then inserting the idle needle. Just play around with it all , set your fuel/air mix at 1 turn out ( Correct position should be around 1-2 turns out ). As you play with you idle make sure to play with your mix , eg you can increase the increase the fuel mix to increase idle. But yeh make sure your gettig that slide in correctly , I know it sounds dumb but its decieving as it may look right. I've done this twice lol , You need to have a small gap. Just play with it for a bit.
An airleak between the carb and manifold wont do this to your bike. I had the same issue , everyone said airleak. It wasnt , there was an airleak but it did very little which was fixed with a new gasket. Just pull down your carb and check everything over , we know the problem is in the carb so we will work only on that!
Check also your float pin is not upside down ( Cone end needs to be down , little switch up to where the floats hit the needle) , having it installed incorrectly will cause the carb to suck in wayyyy tooo much fuel into the bowl and there for it will rev its tits out. Also make sure your needle is seated beneath the wire catch that slots on top of the needle above the clip. Some people make the mistake and stick that little bit of metal beneth the needle causing it to lean out. You can check whether or not if the fuel is comming through the carb correctly by removing the bowl and turning the fuel tap on - fuel should run through the carb. When you push the float up to a level position fuel should shut off.
Keep us informed , piss the service off. We'll fix it!!!
let some doofus apprentice mechanic kill it and pay for the joy
