Coolant drain for carbs

[Kevin Hollis]

Ok, I have to bite the bullet and remove and clean the carbs. It's just 
not running right.
Would those experienced with stripping down the bike please give some 
advice.

The service manual doesn't bother to mention it but I've got a coolant 
pipe attached to the carburettors.
Do I have to drain the coolant before I can remove the carbs ?
Can I cheat by clamping the pipes ?
Will this create an airlock in the carb when I reassemble or will it 
self-bleed ?

Help !

Thanks
Kevin