Re: 1981 CB750K Fuel System

Posted by LukeM on Jun 03, 2011; 10:39am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1981-CB750K-Fuel-System-tp3008331p3019199.html

RE: tube routing.  They don't connect to anything. They are supposed to take the overflowed fuel and drop it on the ground. Route the open end of the lines between the engine/trans and the airbox, but don't let the ends drip fuel in front of the tire.  That could be dangerous. I think there is a hose routing diagram in the FSM.

RE: vacuum line connection.  I knew it was one of the carbs. Not having that hose connected would be equivalent to a vacuum leak, which would make it run bad.  You'd hear it hiss, and if you put your finger over the end, the idle speed would increase a bit as well.  Glad I could help.

Luke M