Originally Posted by supershaft
I really do hope I am helping somebody. Yes, sometimes things do start off too lean on the mains (setups very often start off too lean just off idle but that is another story) but most of the time it's the other way around. So many peole think of jetting as putting the biggest jets in there that will still work. Wrong! It's all about putting the smallest jets in there that still work. If your butt dyno can't tell the difference a real one will!
i was too lwan on main but too fat on the pilot and nj
changed the needle and upped the main and got better but a big hiccup
went down 2 steps on nj and back to the 6f4 and rides better.
in a couple days i will step back to 140 main and see
my riding is from 5000 to 10000 feet so i have to ride on the lean side of things
if i was going down i would tune on the rich side
i love being able to deccide a change, visualize it, predict the outcome, and be right!