Choking KTM 250 exc (1996)

[Jugernaut]

Hey guys,

So here's my problem: I use my 250 on the road. I ve been tryin to pop wheelies and stuff but by bike is letting me down. It doesn't always perform the same way. it goes from "rocket" to "choking machine" from one second to the next.

This choking happens when I pin the throttle suddenly, if I turn it relatively slow it revs nicely until it tops out.

Is this a carb problem or maybe a powervlave problem ?

I recently went from 175 main to 170 ( I live in a hot and humid country) but i kept having the same problem.

Any help appreciated. Thanks

Rega