Well i figured i would post this so if someone is trying to figure out what jet size to use they can just look here. Heres the Idea. If everyone could just post what Mods they put in there bike and they Jet sizes that you found to work best.I think this would be helpful for those of us who are thinking about mods, so we don't have to keep trying different jet sizes.

For Example:

04 Z400
HMF Slip on
Removed Air Box Lid and Snorkle
K&N Filter w/Outerwear.

Jet Size : XXX


Thanks,

 

03 Z400
Pro Circuit T-4 full system
No airbox lid or snorkel
K&N with outerwares
450 ft above sea level


Jet size- 160 mikuni main

 

if it were only that easy it woulkd have to be more like this
1987 lt250
fmf gold series fatty
power core silencer
38mm airstryker
boysen reeds
13tooth front
no toil filter
no lid on airbox
600 ft alt
75 degrees F
78% humidity
keihin main 172
52 pilot
dgk needle

now if ya want a starting point call sudco tellem bike and mods and they will give you a great idea for needle pilot and main . seeings posting just your main and mods cant be accurate for others.