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:

Checking the front and rear brake pads
The front and rear brake pads must be checked for wear at the intervals specified in the periodic maintenance and lubrication chart. Front brake pads Remove the front brake caliper by removing the bolts. Bolt Brake caliper Lining thickness Check each front br ...

Sidestand
The sidestand is located on the left side of the frame. Raise the sidestand or lower it with your foot while holding the vehicle upright. TIP The built-in sidestand switch is part of the ignition circuit cut-off system, which cuts the ignition in certain situations. WARNING The vehicl ...

Throttle position sensor
1. Check: Throttle position sensor a. Connect the digital circuit tester to the terminals of the throttle body sensor assembly coupler as shown. Positive tester probe → gray/red terminal "1" Negative tester probe → gray/black terminal "2" b. Measure the throttle pos ...