2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 279Get this manual
BRAKE SYSTEM Check the cy li nder bore and piston for scoringscratches of damageCheck the adjuster for wear or damageCheck the lock spring for fatigue or damage
ADJUSTER
LOCK SPRING
Measure the wheel cylinder 1.0SERVICE LIMIT: 19.12 (0.753 in)
Measure the piston 0.0SERVICE LIMIT: 18.81 mm (0.741 in)