1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 218Get this manual
BRAKES - cylinder assy and by removing the boltsDisassembly themClean off any sealant material from the cylinders, bolts and brake panel
WHEEL CYLINDERADJUSTER INSPECTION
TRX300 Inspect the wheel cylinder bore and pistons for scoring or groovingInspect the piston cups and piston boots for wear or fatigue
(1) WHEEL CYLINDER BODY