Yamaha 650 Quick Carburetor Clean / Repair Series

Seems to be given any amount of time that the jets in the emulsion tube of each carb will clog causing the engine to die just off idle.  Even if the carbs are perfectly clean, this issue causes an interesting closure to form, a perfect circle which reduces the jet size in a uniform fashion.  For these situations it is not necessary to remove the carbs from the bike, and a quick clean of these particular jets can be accomplished.

This Three part series described the whole procedure in detail