2012 YAMAHA CYGNUS 125 warning

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EAU15943
OPERATION AND IMPORTANT RIDING POINTS
EAU17213
ParkingWhen parking, stop the engine, and
then remove the key from the main
switch.
EWA10311
WARNING
● Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them and be burned.● Do not park on a slope or on
soft ground, otherwise the ve-
hicle may overturn, increasing
the risk of a fuel leak and re.● Do not park near grass or other
flammable materials which
might catch re.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAUS1823
Periodic inspection, adjustment, and
lubrication will keep your vehicle in
the safest and most effi cient condition
possible. Safety is an obligation of
the vehicle owner/operator. The most
important points of vehicle inspection,
adjustment, and lubrication are ex-
plained on the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However,
depending on the weather, terrain,
geographical location, and individual
use, the maintenance intervals may
need to be shortened.
EWA10321
WARNING
Failure to properly maintain the
vehicle or performing maintenance
activities incorrectly may increase
your risk of injury or death during
service or while using the vehicle.
If you are not familiar with vehicle
service, have a Yamaha dealer per-
form service.
EWA15122
WARNING
Turn off the engine when perform-
ing maintenance unless otherwise
speci ed.● A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
res.● Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monox-
ide poisoning - possibly lead-
ing to death. See page 1-2 for
more information about carbon
monoxide.
EWA10330
WARNING
This scooter is designed for use
on paved roads only. If this scooter
is operated in abnormally dusty,
muddy or wet conditions, the air
lter element should be cleaned or
replaced more frequently, other-
wise rapid engine wear may result.
Consult a Yamaha dealer for proper
maintenance intervals.
EWA15460
WARNING
Brake discs, calipers, drums, and
linings can become very hot dur-
ing use. To avoid possible burns,
let brake components cool before
touching them.
EAU17302
Emission controls not only function
to ensure cleaner air, but are also
vital to proper engine operation and
maximum performance. In the follow-
ing periodic maintenance charts, the
services related to emissions control
are grouped separately. These serv-
ices require specialized data, knowl-
edge, and equipment. Maintenance,
replacement, or repair of the emission
control devices and systems may be
performed by any repair establishment
or individual that is certifi ed (if applica-
ble). Yamaha dealers are trained and
equipped to perform these particular
services.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU20065
Final transmission oilThe final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
scooter. In addition, the fi nal transmis-
sion oil must be changed as follows at
the intervals specified in the periodic
maintenance and lubrication chart.
1. Start the engine, warm up the fi -
nal transmission oil by riding the
scooter for several minutes, and
then stop the engine.
2. Place the scooter on the center-
stand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
ZAUM00**
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1. Final transmission oil fi ller cap4. Remove the fi nal transmission oil
filler cap and its O-ring from the
fi nal transmission case.
5. Remove the fi nal transmission oil
drain bolt and its gasket to drain
the oil from the fi nal transmission
case.
ZAUM00**
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1. Final transmission oil drain bolt6. Install the final transmission oil
drain bolt and its new gasket, and
then tighten the bolt to the speci-
fi ed torque.Tightening torque:
Final transmission oil drain bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)7. Refi ll with the specifi ed amount of
the recommended fi nal transmis-
sion oil. WARNING! Make sure
that no foreign material enters
the final transmission case.
Make sure that no oil gets on
the tire or wheel.
[EWA11311]
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
Cleaning the air lter check hoses
1. Check the hoses on the front and
rear side of the air filter case for
accumulated dirt or water.ZAUM00**
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1. Air fi lter check hose2. If dirt or water is visible, remove
the hoses, clean them, and then
install them.Cleaning the V-belt case air filter
element
1. Remove the V-belt air filter case
cover by removing the screws.
ZAUM00**
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1. V-belt air fi lter case cover2. Remove the fi lter element holder
by removing the screw.ZAUM00**
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1. Air fi lter element holder
3. Pull the air fi lter element out, and
then clean it with solvent. After
cleaning, remove the remain-
ing solvent by squeezing the
element. WARNING! Use only a
dedicated parts cleaning sol-
vent. To avoid the risk of re or
explosion, do not use gasoline
or solvents with a low flash
point.
[EWA10431]
NOTICE:
To avoid
damaging the air lter element,
handle it gently and carefully,
and do not twist it.
[ECA10521]
ZAUM00**
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1. V-belt case air fi lter element4. Apply oil of the recommended
type to the entire surface of
the sponge material, and then
squeeze the excess oil out.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAUT2142
TiresTo maximize the performance, dura-
bility, and safe operation of your ve-
hicle, note the following points regard-
ing the specifi ed tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EWA10503
WARNING
Operation of this vehicle with im-
proper tire pressure may cause
severe injury or death from loss of
control.● The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the tempera-
ture of the tires equals the am-
bient temperature).● The tire air pressure must be
adjusted in accordance with
the riding speed and with the
total weight of rider, passen-
ger, cargo, and accessories ap-
proved for this model.
Tire air pressure (measured on cold
tires):
Up to 90 kg (198 lb):
Front:
175 kPa (1.75 kgf/cm
2, 25 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
90 kg (198 lb) to maximum load:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
Maximum load*:
157 kg (346 lb)
*Total weight of rider, passenger,
cargo and accessories
EWA10511
WARNING
Never overload your vehicle. Op-
eration of an overloaded vehicle
could cause an accident.
Tire inspectionZAUM00**
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1. Tire tread depth
2. Tire sidewallThe tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or if
the sidewall is cracked, have a Yama-
ha dealer replace the tire immediately.Minimum tire tread depth (front and
rear):
0.8 mm (0.03 in)TIPThe tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENTTire information
This model is equipped with tubeless
tires.
After extensive tests, only the tires
listed below have been approved for
this model by Yamaha Motor Co., Ltd.Front tire:
Size:
110/70-12 47L
Manufacturer/model:
CHENG SHIN/C-922N
Rear tire:
Size:
120/70-12 58L
Manufacturer/model:
CHENG SHIN/C-6007
EWA10470
WARNING
● Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
vehicle with excessively worn
tires decreases riding stability
and can lead to loss of control.● The replacement of all wheel
and brake related parts, includ-
ing the tires, should be left to
a Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
EAU21962
Cast wheelsTo maximize the performance, dura-
bility, and safe operation of your ve-
hicle, note the following points regard-
ing the specifi ed wheels.● The wheel rims should be
checked for cracks, bends, warp-
age or other damage before each
ride. If any damage is found,
have a Yamaha dealer replace
the wheel. Do not attempt even
the smallest repair to the wheel.
A deformed or cracked wheel
must be replaced.● The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced.
An unbalanced wheel can result
in poor performance, adverse
handling characteristics, and a
shortened tire life.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU22170
Adjusting the rear brake lever
free playZAUM00**
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1. Rear brake lever free playThe brake lever free play should mea-
sure 10 ~ 20 mm (0.039 ~ 0.079 in) as
shown. Periodically check the brake
lever free play and, if necessary, ad-
just it as follows.
To increase the brake lever free play,
turn the adjusting nut at the brake
shoe plate in direction (a). To de-
crease the brake lever free play, turn
the adjusting nut in direction (b).
ZAUM00**
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(a)(b)
1. Adjusting nut
EWA10650
WARNING
If proper adjustment cannot be ob-
tained as described, have a Yama-
ha dealer make this adjustment.
EAU37913
Checking the brake lever free
playThere should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
EWA14211
WARNING
A soft or spongy feeling in the
brake lever can indicate the pres-
ence of air in the hydraulic system.
If there is air in the hydraulic sys-
tem, have a Yamaha dealer bleed
the system before operating the
vehicle. Air in the hydraulic system
will diminish the braking perfor-
mance, which may result in loss of
control and an accident.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU22380
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.
EAU22420
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.
EAU22540
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.
EAU32345
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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