Right, think I've got this sorted!
For the facyory pro version of this mod they recommend the 140 jet which is same as a keihin 140, there is no doubt (at least in my mind) a dynojet 140 is too big, the cross reference charts clearly states it's equivelent to 152.5 keihin which explains lots about the problems i'm having, which is plugs indicate rich condition along with top end power issues. Needle position been 3 different settings with improvements the leaner or lower I drop the needle.
We know the mod works with keihin type 140s with stock needle and also dynojet needle, but for smoothness and ease of setup i'd think the dynojet needles would work better with dynojet jets, as stock needles are different - please correct me if im wrong and it makes no difference at all!
Dynojet equivelent to keihin 140 is dj130(ish) it's either that and have matching jets and needles or stick keihins in! Thought about stock needles, rang my local honda dealer for price- something like £130 for 4 needles!!!!
Before this gets any more confusing i'm calling it a day! will post results as and when.
Daredevil, best way to know you are getting the best from your machine is to get it on dyno and take it someone with good knowledge and experience of carbs to set it up! 135 main jet is quite big but prob equivelent to dj122, which is what dynojet recommended to use with my full system and k&n.
Once i get this sorted I'd be happy to share