KYMCO MX’er 125 Service Manual page 157

13
. REAR WHEEL/SWING ARM/
HYDRAULIC BRAKE
Nut wrench
TROUBLESHOOTING
Rear wheel wobbling
• Bent rim
• Faulty tire
• Axle not tightened properly
Soft rear shock absorber
• Weak shock absorber spring
• Faulty damper
Loose brake lever
• Air in hydraulic brake system
• Brake fluid level too low
• Hydraulic brake system leakage
Hard braking
• Seized hydraulic brake system
• Seized piston
Brake noise
• Contaminated brake pad surface
• Excessive brake disk run out
• Incorrectly installed caliper
• Brake disk or wheel not aligned
Poor brake performance (Disk Brake)
• Air in brake system
• Deteriorated brake fluid
• Contaminated brake pads and brake disk
• Worn brake pads
• Worn brake master cylinder piston oil seal
• Clogged brake fluid line
• Deformed brake disk
• Unevenly worn brake caliper
13-3
F010
Poor brake performance
• Brake not adjusted properly
• Worn brake linings
• Worn brake shoes at cam contacting area
• Worn brake cam
• Worn brake drum
Tight brake lever
•Seized piston
•Clogged hydraulic brake system
•Smooth or worn brake pad
Poor brake performance
Contaminated brake pad surface
REAR WHEEL
REMOVAL
Place the machine on a level place.
MX'er SYSTEM