12. FRONT WHEEL/FRONT BRAKE/ FRONT SUSPENSION PEOPLE 125/150 Remove the pistons from the brake caliper. Compressed Air If necessary, use compressed air to squeeze out the pistons through the brake fluid inlet opening and place a shop towel under the caliper to avoid contamination caused by the removed pistons. Check each piston cylinder for scratches or wear and replace if necessary. Piston Oil Seals Push the piston oil seals outward to remove them. Clean each oil seal groove with brake fluid. Be careful not to damage the piston surface. Check each piston for scratches or wear. Measure each piston O.D. with a micrometer gauge. Service Limit: 33.90mm Check each caliper cylinder for scratches or wear and measure the cylinder bore. Service Limit: 33.45mm 12-12