Hey guys. Ive just picked up a zzr600 for my younger brother and am getting it road worthy for him. Now the brakes didnt work at all and the guy reckoned could have been seized. Managed to pump the pistons out of the right front caliper and have stripped cleaned and thats now working, but the other front caliper the pistons wont pump out, i know there is pressure as one of the pistons looks like its trying but just wont budge, and the other 3 are all fully in and no sign of movement. Im doing this by attaching it to my braided hoses which i know work bleading fully, then pumping the break and out they come. My question is, is compressed air way better for doing this? could it do the job that brake fluid and pressure cant? He doesnt have much money and id rather salvage this one than buying fresh. Or any other tips for getting the pistons to pop out? Secondly his rear caliper as some may know if u had this bike is a big single piston one with the slider thing http://cgi.ebay.co.uk/LOOK-KAWASAKI-ZZR ... 240%3A1318 Now you cant see from that angle. but like the front it has a little bolt through the brake pads then the r clip stopping it coming out and keeping the pads in place. This thing is rusted up big time btw. I got the rclip out but the little bolt just wont budge at all. Ive read the haynes on it and it simply says remove the rclip and bolt and remove brake pads. Any ideas? now yesterday my dad brought home a zzr1100 93 stating i would fix it for him and we get half the profits lol. The exhaust is blowing and i know where from. its a small hole about 1.5cm long and .5 cm wide. Can these be welded or filled somehow. Or do the downpipes need replacing?