Yamaha YZF-R1 2007 Service Manual

REAR BRAKE4-40EAS22590REMOVING THE REAR BRAKE CALIPERNOTE:Before disassembling the brake caliper, drainthe brake fluid from the entire brake system.1. Remove:• Union bolt “1”• Copper washers “2”• Brake hose “3”• Brake caliper “4”NOTE:Put the end of the brake hose into a containerand pump out the brake fluid carefully.EAS22600DISASSEMBLING THE REAR BRAKE CALI-PER1. Remove:• Brake caliper piston “1”• Brake caliper piston seals “2”▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Secure the brake caliper piston with apiece of wood “a”b. Blow compressed air into the brake hosejoint opening “b” to force out the piston fromthe brake caliper.WARNINGEWA13550• Cover the brake caliper piston with a rag.Be careful not to get injured when the pis-ton is expelled from the brake caliper.• Never try to pry out the brake caliper pis-ton.c. Remove the brake caliper piston seals.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS22640CHECKING THE REAR BRAKE CALIPER1. Check:• Brake caliper pistons “1”Rust/scratches/wear → Replace the brakecaliper pistons.• Brake caliper cylinders “2”Scratches/wear → Replace the brake cali-per assembly.• Brake caliper body “3”Cracks/damage → Replace the brake cali-per assembly.• Brake fluid delivery passages(brake caliper body)Obstruction → Blow out with compressedair.Recommended brake componentreplacement scheduleBrake pads If necessaryPiston seals Every two yearsBrake hoses Every four yearsBrake fluidEvery two years andwhenever the brake isdisassembledManuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk