1988 suzuki katana 600cc: rear calipers occasionally lock up pretty good, more frequently in colder weather. Ive blead them out and put new brake fluid in. sprayed brake cleaner on the calipers. spread the calipers apart manually. but it always seems to lock back up after used. if i ride the bike for around 10min it usually lays off. but id like to fix the problem.any suggestions???
It may be the master cylinder thats causing your problem, it may not be releasing pressure or maybe its in some kinda bind. Has the bike been dropped on the right side before? Inspect the brake lever and linkage really good.
The most common problem (95%) of hydraulic brake sticking is crud build up under the seal. It causes the seal to squeeze against the piston, not allowing the piston to return. The caliper will have to be rebuilt.
This is vary dangerous stop riding your motorcycle please! You need to replace the calipers! Get new pads,disc,brake line,and rear brake pedal master cylinder while your at it. Brakes are a critical part of your motorcycle. Do what I said to insure proper function. Don't take chances!