Brake System (Standard) Troubleshooting - Honda GL1800 Service Manual

TROUBLESHOOTING
Brake lever/pedal soft or spongy
• Air in hydraulic system
• Leaking hydraulic system
• Contaminated brake pad/disc
• Worn caliper piston seals
• Worn master cylinder piston cups
• Worn brake pad/disc
• Contaminated caliper
• Contaminated master cylinder
• Caliper not sliding properly
• Low brake fluid level
• Clogged fluid passage
• Warped/deformed brake disc
• Sticking/worn caliper piston
• Sticking/worn master piston
• Bent brake lever/pedal
Brake lever/pedal hard
• Clogged/restricted hydraulic system
• Sticking/worn caliper piston
• Sticking/worn master piston
• Caliper not sliding properly
• Bent brake lever/pedal
Brake drag
• Contaminated brake pad/disc
• Misaligned wheel
• Badly worn brake pad/disc
• Warped/deformed brake disc
• Caliper not sliding properly
• Clogged/restricted fluid passage
• Sticking caliper piston
• Improper secondary master cylinder push rod length (rear brake)
• Faulty proportional control valve (rear brake)
Excessive nose dive and poor brake performance
• Secondary master cylinder hydraulic line problem
BRAKE SYSTEM (Standard)
15-5