I had it running good the other day... i richened the HS needle by 1/4 turn, like FBD said (thanks!) and after that i changed it 1, maybe 2 clicks. as far as i could tell, it was running good! a little smoke, but no surging, almost instant response. I could also idle it at lower than the manual says, but i didnt do it much incase it caused damage.

But of course, with my luck, there came another problem. I was doing the pinch test. the settings seemed okay as per the instruction manual (slight rise in rpm before dying) and i just wanted to test it again. but then it would not start. it seems that its not sucking fuel anymore.

This is what i figured out: I put my thumb over the carb and turned over the prop a few times. (primed it). it looks like the fuel goes in the carb, then is pushed back out, with air bubbles in it. I can also hear a slurping noise. it sounds like its coming from the front ball bearing or somewhere under the carb. So: i took the prop and nut and the thing that the manual calls the prop driver off, plus the little washer between the prop driver and the ball bearing. (just to clarify that i dont have any parts missing, thats all that should be there) Now I was looking at the front ball bearing inside the case. It looks like some fuel dribbled out of the ball bearing. Also, before i took this apart, the bottom of the front of the crankcase was all wet, and im sure it was fuel.
So, as far as i can tell, fuel is leaking out the front ball bearing and air is going in through there, so I have no vacuum to suck fuel in and keep it there. There is a seal on the ball bearing, but it does not cover the crankshaft. I'm wondering if there is a seal on the inside that is perhaps broken? It could also possibly be the gasket for the carb that's leaking, but i dont really think so. Should i take the carb off and check? or do i just take the whole thing into the LHS to get it checked over.

I just want to say, I would rather have someone give advice to me so I can fix it myself, rather than getting the LHS to do it for me, so i can fix it if i have more problems later. Someone told me that if i wanted to do this myself, then i shouldn't be coming to RCU, cause then i'm not doing it myself, but I just want to be familiar with this motor. That's why i prefer to come here than LHS.

Thankyou everyone for bearing with me, I know you must be all shaking your heads at my logic, but I really do want to learn about building and maintaining these planes, not just flying them. thankyou everyone.