This issue is driving me up the wall. As part of a much needed general overhaul on my high mileage 1999 5th gen VFR 800 I have ditched the linked brake system and replaced it with a HEL kit. The one problem that I haven't been able to solve is that the front calipers will grip just fine but they won't release and I'm now pretty desperate having missed riding all of this summer. Starting from the bottom - I have replaced the rotors, the pads, the seals, the pistons, the hoses (now 2 braided, one to each caliper from the MC) and serviced the master cylinder. I have also checked that the tiny return hole in the master cylinder isn't blocked.
What else can I do? The only other thing I can think of is that ratios might be wrong between the master cylinder and the pistons now, I'm only using the 2 outer pistons on each caliper but I've no idea how to do the maths for that. I had to downsize the MC for the rear and that works fine but I just tried that and got lucky.
Help!
(Photo is prior to delinking. It's a UK 50th anniversary edition but the yellow flashes on the side looked terrible so we've left the Honda racing team and joined the rebel alliance)
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andybutton
Hi all, first time poster hope you can help!
This issue is driving me up the wall. As part of a much needed general overhaul on my high mileage 1999 5th gen VFR 800 I have ditched the linked brake system and replaced it with a HEL kit. The one problem that I haven't been able to solve is that the front calipers will grip just fine but they won't release and I'm now pretty desperate having missed riding all of this summer. Starting from the bottom - I have replaced the rotors, the pads, the seals, the pistons, the hoses (now 2 braided, one to each caliper from the MC) and serviced the master cylinder. I have also checked that the tiny return hole in the master cylinder isn't blocked.
What else can I do? The only other thing I can think of is that ratios might be wrong between the master cylinder and the pistons now, I'm only using the 2 outer pistons on each caliper but I've no idea how to do the maths for that. I had to downsize the MC for the rear and that works fine but I just tried that and got lucky.
Help!
(Photo is prior to delinking. It's a UK 50th anniversary edition but the yellow flashes on the side looked terrible so we've left the Honda racing team and joined the rebel alliance)
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