I think those rubber brake lines are old and when the brakes are on it feels like a sponge. :crushed::vfrshorty:
I'm new to this or any forum and hope you have solved your problem by now. I recently purchased a 5th gen. VFR and when replacing the brake fluid found that a crucial place to bleed air from the system is the linked (proportioning valve?) under the rear of your fuel tank, the highest point in your breaking system.