Suzuki LT-Z90 Manual page 37

FRONT AND REAR BRAKE SHOE WEAR
This vehicle is equipped with brake wear limit indicators for the
front and rear brake. Check brake lining wear as follows:
• Make sure the brake lever play is properly adjusted.
• While fully applying the brake, check to see that the extension
line of the index mark 1 is within the range 2 .
• If the index mark goes beyond the range, the brake shoe
assembly must be replaced with a new set of shoes.
PERIODIC MAINTENANCE 2-21