Yamaha TENERE XT660Z Owner's Manual page 68

PERIODIC MAINTENANCE AND ADJUSTMENT
Rear brake (for XT660ZA)
1. Minimum level mark
Insufficient brake fluid may allow air
to enter the brake system, possibly
6
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low bra-
ke fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
TIP
For XT660ZA, the rear brake fluid
reservoir is located under the seat.
(See page 3-16).
Observe these precautions:
G
When checking the fluid level,
make sure that the top of the bra-
ke fluid reservoir is level.
G Use only the recommended qua-
lity brake fluid, otherwise the rub-
ber seals may deteriorate, cau-
sing leakage and poor braking
performance.
Recommended brake fluid:
DOT 4
G Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performan-
ce.
G Be careful that water or dust
does not enter the brake fluid
reservoir when refilling. Water will
significantly lower the boiling
point of the fluid and may result
in vapor lock, and dirt may clog
the ABS hydraulic unit valves.
G Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
6-22
G
As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenan-
ce and lubrication chart. In addition,
have the oil seals of the master cylin-
ders and calipers as well as the brake
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.
G
Oil seals: Replace every two
years.
G
Brake hoses: Replace every four
years.
EAU22731