Jetting Keihins

Im jetting a 900 kz with keihin cr's 31 or 32's on it.It has a 1015 kit with street compression,runs real rich,even fouls the #4 plug.It has 62 pilots and 122 mains.Im gonna have to buy the jets so I would like to get some thought of where to start,just so I dont end up with a tons of $ in jets.
Thanx in advance!

first off those are pretty big carb for a little 1015 street motor but if your really looking good info OMR has just installed a brand new set on his bike and has gone thru all the jetting and i think he has done a write-up on it.so maybe get in touch or look thru his post's and you may find better info dave is the man when it comes to CR'S