Found this. Insightful.

http://www.factorypro.com/tech_tunin...m_engines.html

 

good read there, seams like it would take a full day between switching jets and needle height back and forth. seams like im kinda lean down low, and i kinda wanted to rip the bike apart tomarrow so ill have to see if this stuff is right.

 

Thats easy enough to do with one carb. Try doing that with a 4 carb Honda or a 6 carb boat engine. Its going to be a long day.