carcaveman wrote on 01/04/15 at 20:59:23:Versy, Having gas pouring over a hot engine seems kind of dangerous. If the tubes were meant to be routed to the air box, they would drain to the bottom. I'll leave it if that's what the design is, but I wanted to at least know..
David
The tubes vent air....not fuel. If the fuel ever comes out of those tubes - it means your bike is very nearly upside down. If the float bowl should overflow for some reason with the bike upright....the fuel will run out the main and needle jet and flood the engine and air box with fuel....fuel will not flow out those vent tubes.
This carb doesn't have any way for fuel to overflow out a drain if the fuel in the float bowl gets too high. Some Mikuni carbs do have an overflow drain......but not this CV carb.