Remove the hose end from the float bowl drain spigot, measure that hose length and make a second one the same length. Put it on the vent tube you circled by the choke lever. Run the left side up, over and down the opposite side, doing the same on the right side to the opposite side. Two small zip ties to keep them together (and out of the way) to allow the air pressure to equalize in the float bowl. The pic below shows those two hoses are kept together with a small plastic sleeve.
Don't forget to add a length of hose to the float bowl drain tube.
