I have a Norton with a single Mikuni and it is always a headache to make the fuel lines fit. What I came up with works well for tight spaces. I found some copper tubing at the local hardware store that fits easily into standard plastic fuel line. It bends easily with an inexpensive tool available from the same place. I make the bend I need and with a little oil and heating the tubing I can push it, bend and all, into the tubing and there is no possibility of leaks and no ugly hose clamps. Of course the flow is reduced somewhat but it has not affected the 750 Norton.