stuttering at low rpm's

[Disorderlypunk]

looks like a re-rebuild is definatly on the cards - as with any carb rebuild make sure you have a nice clean area ready to seperate each carb into its own area - go through each piece checking all jet holes are clear etc etc (grandma this is how you suck eggs) - make sure you check your float levels on each carb it is amazing how often this is overlooked (including by myself as it is a final step and im impatient) it never hurts to throw a dose of redex through just before a rebuild (if it runs at least) and get a few miles to let it do its stuff
while carbs are off it would be a good idea to check your inlet rubbers (even though its a rich mixture problem you might as well)
and also ask around your area if anyone has a carb balancing kit (wont hurt to check and balance as you can loosen screws while they are off and make it easy)