brake fluid YAMAHA CYGNUS 125 2012 Owners Manual

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PERIODIC MAINTENANCE AND ADJUSTMENT
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Checking the front brake
pads and rear brake shoesThe front brake pads and the rear
brake shoes must be checked for
wear at the intervals specified in the
periodic maintenance and lubrication
chart.
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Front brake padsZAUM00**
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1. Brake pad wear indicator grooveEach front brake pad is provided with
a wear indicator groove, which al-
lows you to check the brake pad wear
without having to disassemble the
brake. To check the brake pad wear,
check the wear indicator groove. If a
brake pad has worn to the point that
the wear indicator groove has almost disappeared, have a Yamaha dealer
replace the brake pads as a set.
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Rear brake shoesZAUM00**
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1. Wear indicator
2. Wear limit lineThe rear brake is provided with a wear
indicator, which allows you to check
the brake shoe wear without having to
disassemble the brake. To check the
brake shoe wear, check the position
of the wear indicator while applying
the brake. If a brake shoe has worn
to the point that the wear indicator
reaches the wear limit line, have a
Yamaha dealer replace the brake
shoes as a set.
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Checking the brake uid levelZAUM00**
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1. Minimum level markBefore riding, check that the brake
fl uid is above the minimum level mark.
Check the brake fluid level with the
top of the reservoir level. Replenish
the brake fl uid if necessary.Speci ed brake uid:
DOT 4
EWA15990
WARNING
Improper maintenance can result
in loss of braking ability. Observe
these precautions:● Insufficient brake fluid may al-
low air to enter the brake sys-
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PERIODIC MAINTENANCE AND ADJUSTMENT
tem, reducing braking perfor-
mance.
● Clean the filler cap before re-
moving. Use only DOT 4 brake
uid from a sealed container.● Use only the specified brake
fluid; otherwise, the rubber
seals may deteriorate, causing
leakage.● Refill with the same type of
brake uid. Adding a brake u-
id other than DOT 4 may result
in a harmful chemical reaction.● Be careful that water does not
enter the brake fluid reser-
voir when refilling. Water will
significantly lower the boiling
point of the fluid and may re-
sult in vapor lock.
ECA17640
NOTICEBrake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled uid immediately.
As the brake pads wear, it is normal
for the brake fluid level to gradually go down. A low brake fl uid level may
indicate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fl uid level goes down suddenly, have
a Yamaha dealer check the cause be-
fore further riding.
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Changing the brake uidHave a Yamaha dealer change the
brake fl uid at the intervals specifi ed in
the TIP after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the brake master cyl-
inder and caliper as well as the brake
hose replaced at the intervals listed
below or whenever they are damaged
or leaking.● Oil seals: Replace every two
years.● Brake hose: Replace every four
years.
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