Checking The Brake - Yamaha YJ50RAP Service Manual

FRONT WHEEL AND BRAKE
EAS00536

CHECKING THE BRAKE

The following procedure applies to all of the
brake shoes.
1. Check:
• brake shoe lining
Glazed areas → Repair.
Sand the glazed areas with course sandpa-
per.
NOTE:
@
After sanding the glazed areas, clean the
brake shoe with a cloth.
2. Measure:
• brake shoe lining thickness a
Out of specification → Replace.
@
Do not allow oil or grease to contact the
brake shoes.
NOTE:
@
Replace the brake shoes as a set, if either is
worn to the wear limit.
3. Measure:
• brake drum inside diameter a
Out of specification → Replace the wheel.
4. Check:
• brake drum inner surface
Oil deposits → Clean.
Remove the oil with a rag soaked in lacquer
thinner or solvent.
Scratches → Repair.
Lightly and evenly polish the scratches with
an emery cloth.
5. Check:
• brake camshaft
Damage/wear → Replace.
4 - 7
Brake shoe lining thickness limit
(minimum)
2 mm (0.08 in)
WARNING
Brake drum inside diameter limit
(maximum)
110.5 mm (4.35 in)
CHAS