(Honda CBR400 NC23 and NC29 from 1987 to 1994. Honda GB500 1989. We have both available). Honda CBR600F CBR600F1 from 1987 to 1990. If you have a 22mm thread on your petrol tank. They generally leak or just don't pass fuel or just flow continuously which can lead to the carbs flooding and your engine filling up with fuel.
