Just an obvervation here, but IMHO, you should not be messing around in your carbruetors if you have to ask how to adjust a float. There are some very expensive, sensitive parts in there that can get ruined by not knowing what you are doing. I.e., each slide is something like $115 $US.
A good choice for knowledge is to join COG and get access to an excellent article from MOB on "Carbs, It Ain't a Diet Thing"(I think I got that right). It goes into amazing detail on the workings and repair of carbbies. Worth the $37US just for that, but he also did a bang up article on the cooling system, among others.
If nothing else, hook up with
https://sites.google.com/site/shoodabenengineering/intake-and-exhaust and ship the carbbies over the pond. This is probably the best, most economical and definitely least stressful way to go.
Thanks, Rich, for doing those when you were more than "just a memba".