PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
6 YCC-S clutch
Insufficient brake fluid may allow air to
enter the brake or YCC-S clutch sys-
tems, possibly causing them to become
ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake 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
The rear brake fluid reservoir is lo-
cated behind panel C. (See page
6-7.)
The YCC-S clutch fluid reservoir is
located behind panel B. (See page
6-7.)
Observe these precautions:
When checking the fluid level,
make sure that the top of the brake
and YCC-S clutch fluid reservoirs
are level.
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking or
YCC-S clutch performance.
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking or YCC-S
clutch performance.
The brake and YCC-S clutch fluid
reservoir diaphragms will lose their
shape from the negative pressure
if the fluid level goes down too far.Be sure to return the diaphragms
to their original shape before rein-
stalling them.
Be careful that water or dust does
not enter the brake and YCC-S
clutch fluid reservoirs when refill-
ing. 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.
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.
1. Minimum level mark
Recommended brake and YCC-S
clutch fluid:
DOT 4 brake fluid
U1DAE0E0.book Page 23 Friday, January 15, 2010 4:03 PM
MOTORCYCLE CARE AND STORAGE
7-4
73. Perform the following steps to pro-
tect the cylinders, piston rings, etc.
from corrosion.
a. Remove the spark plug caps
and spark plugs.
b. Pour a teaspoonful of engine oil
into each spark plug bore.
c. Install the spark plug caps onto
the spark plugs, and then place
the spark plugs on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder walls with oil.)
WARNING! To prevent dam-
age or injury from sparking,
make sure to ground the
spark plug electrodes while
turning the engine over.
[EWA10951]
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlets with plas-
tic bags to prevent moisture from
entering them.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-28.
TIPMake any necessary repairs before
storing the motorcycle.
U1DAE0E0.book Page 4 Friday, January 15, 2010 4:03 PM
