Yamaha TMAX 2020 Service Manual

4-47FRONT BRAKEWARNINGEWA13090• Use only the designated brake fluid. Otherbrake fluids may cause the rubber seals todeteriorate, causing leakage and poorbrake performance.• Refill with the same type of brake fluid thatis already in the system. Mixing brake fluidsmay result in a harmful chemical reaction,leading to poor brake performance.• When refilling, be careful that water doesnot enter the brake fluid reservoir. Waterwill significantly lower the boiling point ofthe brake fluid and could cause vapor lock.NOTICEECA13540Brake fluid may damage painted surfacesand plastic parts. Therefore, always clean upany spilt brake fluid immediately.5. Bleed:• Brake systemRefer to “BLEEDING THE HYDRAULICBRAKE SYSTEM” on page 3-16.6. Check:• Brake fluid levelBelow the minimum level mark  Add thespecified brake fluid to the proper level.Refer to “CHECKING THE BRAKE FLUIDLEVEL” on page 3-14.7. Check:• Brake lever operationSoft or spongy feeling  Bleed the brake sys-tem.Refer to “BLEEDING THE HYDRAULICBRAKE SYSTEM” on page 3-16.EAS30179REMOVING THE FRONT BRAKE MASTERCYLINDERTIPBefore removing the front brake master cylinder,drain the brake fluid from the entire brake sys-tem.1. Disconnect:• Brake light switch connector(from the front brake light switch)2. Remove:• Brake hose union bolt• Brake hose gasket• Brake hoseTIPTo collect any remaining brake fluid, place acontainer under the master cylinder and the endof the brake hose.EAS30725CHECKING THE FRONT BRAKE MASTERCYLINDER1. Check:• Brake master cylinderDamage/scratches/wear  Replace.• Brake fluid delivery passage(brake master cylinder body)Obstruction  Blow out with compressed air.2. Check:• Brake master cylinder kitDamage/scratches/wear  Replace.3. Check:• Brake master cylinder reservoir cap• Brake master cylinder reservoir• Brake master cylinder reservoir diaphragmholderCracks/damage  Replace.• Brake master cylinder reservoir diaphragmDamage/wear  Replace.4. Check:• Brake hoseCracks/damage/wear  Replace.EAS30181ASSEMBLING THE FRONT BRAKE MASTERCYLINDERWARNINGEWA13520• Before installation, all internal brake com-ponents should be cleaned and lubricatedwith clean or new brake fluid.• Never use solvents on internal brake com-ponents.EAS30182INSTALLING THE FRONT BRAKE MASTERCYLINDER1. Install:• Front brake master cylinder “1”• Front brake master cylinder holder “2”Specified brake fluidDOT 4Front brake master cylinder hold-er bolt10 N·m (1.0 kgf·m, 7.4 lb·ft)T R..