1999-2002 TRX400EX Fourtrax Service Manual, Page 205Get this manual
HYDRAULIC DISC BRAKE -snap ring
TOOL Snap ring pliers
SNAP RING 07914 -SA50001
- master piston -spring Clean the master cylinder, reservoir and master piston in clean brake fluid
INSPECTION
Check the piston cups for wear, deterioration or damageCheck the spring for damageCheck the master cylinder and piston for scoring, scratches or damageMeasurethe master cylinder 1.0SERVICE LIMIT 12.75mm (0.502 in) Measure the master piston 0.0SERVICE LIMIT: 12.65 mm (0.498 in)