Socalrebel, the stock Keihin carb is actually quite a good carb and has been used for what seems like a ton of years so all the kinks were worked out long ago. Brand new rebuild kit is about $40 and really not much to "wear" out. Most common problem is varnish, rust, combustion deposits clogging openings, sticking parts like the CV needle valve/slide assembly, (easily accessed w/o removing carb), grooved float needle due to prolonged "sitting", the rubber/neoprene gets brittle and old.
Oh, forgot one thing, some "modify" the CV emulsion tube with a 1/8" drill which doesn't work...causing irregular movement of and inconsistant mixture. All you need is to look in the self help section for diagram, tips on getting fueling right, a can of Gumout spray carb cleaner and a bit of careful disassembly and patience. Good luck and don't despair...!
