1999-2004 Honda TRX400EX FourTrax Service Manual, Page 199Get this manual
HYDRAULIC DISC BRAKE
Snap ring pliers
07914- SA50001
TROUBLESHOOTING
Brake leverlpedal soft or spongy Air in hydraulic system Leaking hydraulic system Contaminated brake padldisc Worn caliper piston sealsWorn master cylinder piston cups Worn brake padldisc Contaminated caliper Contaminated master cylinderCaliper not sliding properly Low brake fluid levelClogged fluid passage Warpedldeformed brake discStickinglworn caliper piston Stickinglworn master piston Bent brake leverlpedal