14. HYDRAULIC BRAKE STRYKER 125/150 INSPECTION Measure the brake master cylinder I.D. Inspect the master cylinder for scratches or cracks. Service Limit: 12.75mm replace if below Measure the brake master cylinder piston O.D. Service Limit: 12.64mm replace if below ASSEMBLY Before assembly, apply brake fluid to all removed parts. Install the spring together with the 1st rubber cup. · During assembly, the master cylinder, main piston and spring must be installed as a unit without exchange. · When assembling the piston, soak the cups in brake fluid for a while. 14-8