Brad,
There is whole bunch of stuff via the website on Amals the search option may be useful for more detail, but here's my version in brief and I assume the carbs are clean inside and out and float level set. Amals are sensitive to gum in the Pilot (idle) jet. Another thing is Float level setting, almost invariably forgotton or ignored.
1. Remove the fuel tank, you need to get to the carb tops.
2. Remove airfilter, you have to feel or see the slides.
3. Slacken off the slide cable adjuster screws on the carb tops.
4. Remove the slide lifter screws (angled ones)
5. Work the throttle grip to see how the slides lift in unison or out of sync.
6. Adjust the cable tension on the carb tops or in-line cable adjusters to equalise the slide lift.
7. Refit the slide adjuster screws and very gently turn in until they just nudge the slides up. Turn the throttle grip to see they are still in sync.
8. Turn the slide lifter screws in 1 turn. Pays to reference the screw position like a clock, i,.e slot a 6 / 12, twice brings it to 6/12 one whole turn.
9. Turn the Mixture screw (nearest the manifold) all the way in gently. As soon as it bottoms out, back it off 1 turn. Thats moderately rich.
10. Fit the fuel tank and hoses and tickle the carbs float plungers. Actually just press them down until fuel pees out.
11. Start the bike, if it has chokes fitted better wind them on if its cold, otherwise work the twist grip gently to stay up around 2,000RPM for a minute or so.
12. Once warmed up, (it is better to go for a short ride) you can adjust the idle speed to around 1,000RPM by turning up or down the Slide Adjuster screw on each carb equally on very small increments. remember see it as a clock, both carbs must have equal slide lift.
13. Mixture if rich is BLACK smoke, BLUE is oil smoke. Generally I find taking the Mixture screw out to a max of 1 and half turns is about right.
Mick