The place you had the bigbore kit done with didn't recommend any jetting??? I only went 2mm over on my KX124 and kept the jetting the same. So I would say start +10 from stock on both pilot and main with clip in middle and see what plug looks like.
__________________
My bikes
88' LT500RJ Quadzilla 
Foster Bike
00' Banshee (Shit my buddy don't ride it!)
My blood is yellow and red!  |