It seem Your engine is rich, Try this setting:
-HSN 3 turns out from closed
-LSN 3/4 turn out from flush with throtle body
Mine was pulling wheelie with this setting...
(Slipper clutch 1/8 turn out,OS A5 plug,Gammalube 25%)
As for the one way You can clean it with gasoline then spray with WD40
Hope this help...