Thanks for the help but I'm still not sure. My question should have been is the 0-0 needle jet for a 200 carb or is it the 0-6 and does one richen the mixture more than the other (sorry for the typo in my original post where I posted it as a 0-5)
Here is some background. I picked up a 175 and a 200 and I'm not sure which parts go with each carb as they were off the bikes when I got them. So what I had to work with were a set of 95 and a set of 100 main jets and the different needle jets. I went with the 100 main with the 0-6 mixer knowing that the 100 would be richer and figured the 0-6 would also be the richer of the two. Was I correct in assuming the 0-6 would give a richer mix? I would rather run rich as plugs are cheaper than pistons. Also I know the 200 uses the 2.5 slides and the 175 uses the 2.0.
Had her out yesterday for the 1st time full tank of pre mix and oil in the auto lube. It was smoking like a Cheech and Chong movie. Pump seems to be working fine so I should be able to cut back on pre mixing the fuel in the gas tank. Which will bring me back to my jet question again 0-0 or 0-6. Any help in this matter is greatly appreciated and BS mechanic thanks again for your help.