youll have to drop your needle down (raise the clip up on the needle when the point is down). try moving it 1 position and see how that goes. it is out of the pilot circuit if you are hitting the throttle a bit, the main doesnt open all the way until the needle it out of it. 3/4 throttle to full throttle.

if you can get it running long enough to warm it up all the way and do some plug chops, you can tell how your main jet is, then work your way down from there with different areas of the throttle and killing it. be prepared to destroy a few plugs though.

steve