If you can change that without removing the tank cover, your a better man then I am.
Just take the top off, make sure you have the proper size screwdriver to fit the tank screw. Pry it off carefully trying not to tear the gasket.
The line goes from the right to the left behind the hold-down stud then comes around the front and back to the right.
I have had real good luck just cleaning off the old gasket and putting a bead of motoseal on it to seal the cover back up.
I will be doing the same on this 744 real soon.
ty