Spitty carbs

["atrav" <atrav@copper.net>]

    I read on a couple of web sites about motorcycle carbs that are real spitty 
at idle is a sign of
being too lean. Is this true?
I always though that spitty motorcycle carbs was just to the intake reversions 
at idle (especially
with a big cam), and the absence of air filters, causing the backwards flow of 
droplets.
-Aron-