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

Yamaha YZF-R125 Service Manual / Chassis / Front brake / Assembling the front 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 dust seals and piston seals to swell and distort.
  • Whenever a brake caliper is disassembled, replace the brake caliper dust seals and piston seals.

    Checking the front brake caliper
    1. Check: Brake caliper pistons "1" Rust/scratches/wear Replace the brake caliper assembly. Brake caliper body "2" Cracks/damage Replace the brake caliper assembly. Brake f ...

    Installing the front brake caliper
    1. Install: Brake caliper "1" (temporarily) Copper washers "2" Brake hose "3" Brake hose union bolt "4" WARNINGProper brake hose routing is essential to insure safe vehi ...

    Other materials:

    Checking the spark plug
    1. Remove: Right side cover Refer to "GENERAL CHASSIS" on page 4-1. 2. Disconnect: Spark plug cap 3. Remove: Spark plug CAUTION:Before removing the spark plug, blow away any dirt accumulated in the spark plug well with compressed air to prevent it from falling ...

    Removing the crankshaft
    1. Remove: Crankshaft "1" NOTE: Remove the crankshaft with the crankcase separating tool "2". Make sure the crankcase separating tool is centered over the crankshaft. CAUTION: To protect the end of the crankshaft, place an appropriate sized socket between the c ...

    Checking the turn signal relay
    1. Check: Turn signal relay input voltage Out of specification →The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be repaired. a. Connect the pocket tester (DC 20 V) to the turn signal relay terminal as shown. - Positive tester probe  b ...

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