Yamaha YFM90RA Model Vehicle User Manual


 
CHAS
6 - 20
EBS00413
CHECKING THE MASTER CYLINDER
1. Check:
• brake master cylinder
Wear/scratches Replace the brake mas-
ter cylinder assembly.
• brake master cylinder body
Cracks/damage Replace.
• brake fluid delivery passage
(brake master cylinder body)
Blockage Blow out with compressed air.
3. Check:
• rear brake master cylinder reservoir
• rear brake master cylinder reservoir dia-
phragm
Cracks/damage Replace.
REAR BRAKE
EBS00415
ASSEMBLING THE REAR BRAKE MASTER
CYLINDER
WARNING
• All internal brake components should be
cleaned and lubricated with new brake
fluid only before installation.
Whenever a master cylinder is disassem-
bled, replace the piston seals and dust
seals.
Recommended brake fluid
DOT 4