Yamaha YZF-R125 Service Manual: Assembling the rear brake caliper

Yamaha YZF-R125 Service Manual / Chassis / Rear brake / Assembling the rear brake caliper

WARNING

Before installation, all internal brake components should be cleaned and lubricated with clean or new brake fluid.
Never use solvents on internal brake components as they will cause the brake caliper piston dust seal and piston seal to swell and distort.
Whenever a brake caliper is disassembled, replace the brake caliper piston dust seal and piston seal.

Checking the rear brake caliper

1. Check: Brake caliper piston "1" Rust/scratches/wear Replace the brake caliper piston. Brake caliper cylinder "2" Scratches/wear Replace the brake caliper assembly. Brake ...

Installing the rear brake caliper

1. Install: Brake caliper "1" Copper washers Brake hose "2" Union bolt "3" WARNINGProper brake hose routing is essential to insure safe vehicle operation. Refer to "CABLE ...

Other materials:

Fi system
The fuel pump delivers fuel to the fuel injector via the fuel filter. The pressure regulator maintains the fuel pressure that is applied to the fuel injector at only 250 kPa (2.50 kg/cm², 36.3 psi). Accordingly, when the energizing signal from the ECU energizes the fuel injector, the fuel ...

Checking the primary driven gear
1. Check: Primary driven gear "1" Damage/wear Replace the primary drive gear and clutch housing as a set. Excessive noise during operation Replace the primary drive gear and clutch housing as a set. ...

Checking the spark plug cap
1. Check: Spark plug cap resistance Out of specification Replace. a. Remove the spark plug cap from the spark plug lead. b. Connect the pocket tester ( × 1k) to the spark plug cap as shown. c. Measure the spark plug cap resistance. ...