What's going on?

[Mongoose]

Screw wouldn't budge, I was just destroying the screwhead.

Magua, is there no spanner type man handy to you at all? If so, get to now them and ask, most are willing helpers, well if they do it as a hobby, some full time spanner shfters dont like teaching.
It would be a lot easier for you to understand and for them to give direct tips on what you are doing.
Just an idea.

[FROSTY:Me]

dude the easy/cheat way with the GN125 is to loosen the two screws holding the carb clips in place (the big hose clips on the rubbers either side of the carb body) Then just rotate the carb body 30 degrees either way.
Use a decent quality screwdriver and remove the 4 screws holding the bowl on the bottom of the carb.The bowl will now fall off
empty whats left in it out and reassemble.