Question about 1998 Yamaha XJR 1200 SP

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I have a 1996 XJR1200 (not SP) and the front brakes are binding - both calipers. The pads are half worn, all pistons can be pushed back into the calipers and all the pins, plates are clean as new with nothing seized up. The fluid level is ok. The calipers are 4 pot old FZR type. Can you suggest a solution?

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Have you changed the brake fluid complete by getting all the trapped air and gunks out?
If you have done that, then remove the brake pads, force piston to come out more, clean around them with Brakleen spray and around piston seals, wipe with clean cotton cloth or use compressed air to ensure that piston surface is very clean and nothing stops free piston movements. Press piston in as close as possible to caliper wall, spray again with Brakleen then air dry to blast all dirt away. Do these 2 to 3 times then assemble everything back and try to see if piston still stuck. If it gives tight friction grip it is now fine, just spin the wheel and you should have a little friction but the whell should be able to turn at least 2 free turns.

Posted on Apr 26, 2010

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For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!!
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4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
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7. Push piston back into brake caliper housing.
8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
9. Install outer brake pad into brake carrier.
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For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!! For front brake pads. First you must verify yours front brake disc diameter: 280 mm or 288 mm. (On my car y have 288 mm). After that you can buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow: 1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose! 2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper. 3. Now you must thoroughly clean the brake calipers (free of grease). 4. Remove outer brake pad from brake carrier. 5. Pull inner brake pad out of brake caliper piston. 6. Check up the brake fluid level on the reservor, and emptying if neccessary! 7. Push piston back into brake caliper housing. 8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward). 9. Install outer brake pad into brake carrier. 10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm. 11. Install both caps. 12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

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