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Re: Motor backfiring and dies at low idle

Posted by LukeM on Jun 10, 2011; 12:37pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Motor-backfiring-and-dies-at-low-idle-tp3023273p3048410.html

The 4 tubes connected to the bottom of the carbs are overflow tubes.  If the float needle valve hangs open, the bowls will overfill.  The tubes take the overflow and let it drain onto the pavement.

I'm aware of a vacuum line on the DOHC engines which connects to a fuel manifold valve.  Also known as the Spawn of Satan, it shuts off fuel flow from the tank if the engine isn't running.

Luke M
Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.