The biggest problem there is the physical size Dave, you need to find one (or two if you have an early CB750) that will fit without the need to "loop" the fuel line, which of course can cause an air lock in a gravity fed system.
The best kind that I find are the small disposable plastic ones that most bike shops sell for a couple of bucks each, they're less than an inch wide and about an inch long (once the hose is pushed onto the "barbs" at either end) so pretty unobtrusive and won't obstruct the hose runs. Cheers, Terry.
