I have a problem with the bike leaking fuel after shut off, and with it covering my leg with gas under hard hard breaking, would this be the same issue?FOG said:Well Audreez.
Opening your pilots screws is a good Idea,But it's not your problem. Your stumbling at steady throttle is the result of flooding or too much fuel overfilling the float bowls. The usal cause of this is debries in the fuel line preventing the float valves from shutting completly. This is also the cause of your poor milage.
You mentioned you cleaned the carbs. I take from that, that you can remove them. Good then take the carbs off and back flush the line back to the tank. (do this over a sheet of white paper to see what comes out.
Then check the float levels to bee 17mm above the split line when the float is just resting on the spring.
Finally install an inline filter in the fuel line.