Yamaha 2007 FZ6-NA Service Manual

Contents

ABS (ANTI-LOCK BRAKE SYSTEM)8-99• Check that the brake fluid pressure is correctly transmitted to the brake disc when the brakepedal is operated and that the pressure decreases when the pedal is released.3. Brake fluid• Visually check the brake fluid in the brake master cylinder reservoir and check the fluid for water,foreign materials, solidification and contamination.• Check for air in the brake hose lines.4. Brake hose lines• Check the brake hose lines for kinks and deterioration (particularly between the hydraulic unitand the rear brake caliper).WARNINGEWA4S81011Only use genuine Yamaha parts. Using other brake pipes, hoses and union bolts may closethe brake hose lines.• Check that the connections of the brake hose lines from the brake master cylinder to the hydrau-lic unit and to the rear brake caliper from the hydraulic unit are correct.WARNINGEWA4S81012The rear brake will not function properly if the connections are reversed.• Rear brake hose “1” inlet: from the rear brake master cylinder• Rear brake hose “2” outlet: to the rear brake caliperNOTE:• If the rear brake hose inlet and outlet connections are reversed on the hydraulic unit, the brakepedal is pressed down to full stroke without responding and will be pushed back slowly withoutpulsating when the final check is performed.• If the front and rear brake hose connections are reversed on the hydraulic unit, the pulsating actionin the brake lever and brake pedal will be performed in the reverse order when the final check isperformed.5. Hydraulic unit solenoid coupler terminal• Check if the front and rear hydraulic unit solenoid coupler terminals (hydraulic unit and wire har-ness [ABS]) are reversed.6. Hydraulic unitIf the malfunction is not corrected after performing steps 1 to 5, replace the hydraulic unit. Besure to connect the brake hose lines and couplers correctly and securely. Check the hydraulicunit operation. (Refer to "[D-6] FINAL CHECK" on page 8-104.)Terminal colorSolenoid side Wire harness side (ABS)Front Red, Green Red, White/BlueRear Red, Blue Red, White/Green