Front

LUBRICATION POINTS

DISASSEMBLY
Front disc brakes should be disassembled separately.
Do not mix right-hand and left-hand parts.





1. Remove the piston boot/piston.
Blow compressed air into the brake hose seating hole. Remove the piston and the piston boot.

CAUTION: Remove the piston using a plastic hammer handle. Blow air slowly, adjusting the heights of the two pistons to push them out equally.
The secondary piston should not be removed before the primary piston is removed completely. Otherwise the secondary piston can't be removed.

2. Remove the piston seal.
1. Remove the piston seal with your finger.

CAUTION: Do not use a screwdriver or another tool because it may damage the cylinder.





2. Clean the piston surface and cylinder using the alcohol or the specified brake fluid.
Brake fluid: DOT 3 or DOT 4

INSPECTION
1. Check the cylinder for wear, damage and rust.
2. Check the piston surface for wear, damage and rust.
3. Check the caliper body and sleeve for wear.
4. Check that grease is applied, and the pad and backing metal are not damaged.





5. Check the pad wear. Check the pad thickness and replace it if it is less than the specified value.
Pad thickness
Specification: 10.0 mm (0.39 inch)
Service Limit: 2.0 mm (0.08 inch)

REASSEMBLY
1. Clean all components with isopropyl alcohol except for the pad and shim.
2. Install the piston seal.
3. After applying the specified brake fluid to the piston outer surface, install the piston into the cylinder.





4. Install the piston boot and boot ring.





5. Install the guide pin boots and guide pin.

INSTALLATION
1. Install the pads and brake cylinder.
2. Install the brake hose to the caliper.
Bleeder screw tightening torque: 7 - 9 Nm (70 - 90 kg cm, 5 - 6.6 ft. lbs.)
3. Fill the brake reservoir with brake fluid.





4. Bleed the system.