Yamaha YBR125 Custom, Owner'S Manual

Page: 53 / 84

PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6
● When checking the fluid level,
make sure that the top of the mas-
ter cylinder is level by turning the
handlebars.
●
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
NOTE:
If DOT 4 is not available, DOT 3 can be
used for the front brake system.
● Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
● Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
● Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
●
As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
EAU22720
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addition,
have the oil seals of the brake master
cylinder and caliper as well as the
brake hose replaced at the intervals
listed below or whenever they are dam-
aged or leaking.
● Oil seals: Replace every two
years.
● Brake hose: Replace every four
years.
Recommended brake fluid:
DOT 4
U3D9E0E0.book Page 21 Saturday, December 25, 2004 11:35 AM