Throttle position is the only determinate of jetting. My brother asked me the same question yesterday. I pointed him to this site and told him to read it twice. He went out and fixed his 1/4 throttle burble with a needle clip change all by himself. Good luck, every bike is different.
Don't mind that it's for a mikuni. Carburetors all work the same way but with different shapes. http://www.iwt.com.au/mikunicarb.htm
You need to figure out whether it's a "bog" or a "burble." One is rich, one is lean. Throttle position is the determinate of jetting needs. -BIG DAN
I have to have the air screw to about 1/2 turn out or else it has a terribly lunging idle... going to put a new plug in, and?
srad, i just grabbed the cr book, and it looks like the guy wrote 40:1 in it.... it maybe jetted for 40:1 and im running 32:1 in it, could that be throwing me off