kawiking Posted March 17, 2008 Report Posted March 17, 2008 when jetting from fmfs to cpi's ... should ur jetting go up ? ive heard when u add drag pipes,that sometimes it will richen u out . ??? Quote
fastbanshee8 Posted March 17, 2008 Report Posted March 17, 2008 When I made that same switch, I had to go down a couple of sizes on the pilot, and up on the main a couple of sizes. I can't remember exactly, because it's been a while. Quote
Wildcardracing Posted March 18, 2008 Report Posted March 18, 2008 I ended up going up 4 sizes, but that was also going from an aggressive trail port with FMF's to a dune port with CPI's. I am now running 330 mains, needle in the middle clip, stock pilots and air screws 2 turns out on stock carbsat 5000' elevation. (Larger carbs are my next mod) I would say up 2 sizes and do a plug chop. Quote
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