2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 96Get this manual
BRAKE HOSE INSPECTION AIR BLEEDING (HYDRAULIC BRAKE SYSTEM)
INSP ADJ
2.Inspect: Front brake hoses Rear brake hoses Cracksweardamage Replace3.Check: Brake hose clamp Loosen Tighten4.Hold the machine in an upright position and apply the front or rear brake5.Check: Brake hoses Active the brake lever several timesFluid leakage Replace the hoseRefer to "FRONT BRAKE" and "REAR BRAKE" in CHAPTER 7
6.Install: Right footrest board Refer to "FOOTREST BOARDS"Front fender Front carrier Seat Refer to "SEAT, CARRIERS, FENDERS AND FUEL TANK"