So I overhauled my front calipers earlier this year. They were nice and clean, no grab or anything. I ride in all weather, and now about 4 months later I've got grab to the point I haven't rode in today - I need to clean them up again tonight.
4 months doesn't seem like long before having to reclean, so did I just do a poor job first time round? (I spent longer doing the back and that isn't grabbing yet).
How often do you clean yours? (Quick clean, piston out full clean etc - whatever it is you do)
The blue spot brakes are very good when working properly but you need to keep on top of the maintenance!
I only ride 6 months of the year nowadays but remove the calipers each winter,clean,check pads,check action of pistons, apply light coat of red rubber grease to exposed ends of pistons, copper grease to back of brake pads,brake pad holding pin.
I wouldnt disturb the seals unless there was evidence of damage-they should be replaced every couple of years anyway as part of the service schedule-for best results use Yamaha OEM seals. If replacing seals,check seal grooves in caliper body are clean & free of corrosion to ensure proper fit & smooth piston action.
Overhaul master cylinders with Yamaha kits. Also consider fitting braided hoses the originals dont last forever! Change brake fluid every 2 years. Result-excellent brakes!
I mean I overhauled mine about 4 months ago. Seals, the lot. They were great for a while but then started grabbing, so I did a quick clean (pads out, extend pistons as far as possible and clean). Now I've just done them again, I tried to do a full clean but couldn't get one of the pistons out. I've just put them back together and they are better but I'm not happy still.
Not sure what to do next. I don't have compressor or anything so was using 2 out, clean, next 2 out and so on. Would love a compressor ad this way it's a pain
10-07-14, 04:15 PM
(This post was last modified: 10-07-14, 04:17 PM by Biker_Bob.)
I usually get away with never having to rebuild them. In summer you're fine but in winter it's ESSENTIAL to wash the calipers down after every ride.
I've got my hosepipe wall mounted just inside the garage door, when I get home I spray the living daylights out of all three calipers - really hammer them from all angles. Then shove the bike in the garage until next time.
Works a treat.
If you do need to rebuild, make sure to scrape the seal grooves spotless with a right angled pick, get all the chod out or they'll just start sticking again.
**EDIT** should have watched that video before posting. :rollin
Yeah, think I need to get the chod out of the grooves as you say. My back is perfect, but I spent ages on that.
Just not keen on having to spend 30 odd quid on seals again.
I have never cleaned my bike pistons/calipers You don't do it with a car so why do it with a bike??????
Because if you don't clean, and you ride in all sorts of weather (sure it may not be as bad if you only ride in the sun) then you will eventually get sticking pistons, which equals grabbing pads, which equals warping a £130 disc.
