Clear Tube Reference Point

Posted by Hoko on Sep 05, 2012; 4:18am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Clear-Tube-Reference-Point-tp4028693.html

When using a clear tube to check the gas level in my carb bowls, what should the reference point be?  X millimeters below the bowl lip or the gasket or what?