2012 YAMAHA CYGNUS 125 tires

TABLE OF CONTENTSSAFETY INFORMATION .................... 1-1
Further safe-riding points ................. 1-5
DESCRIPTION .................................... 2-1
Left view ........................................... 2-1
Right view ......................................... 2-2
Controls and instruments ................. 2-3
INSTRUMENT AND CONTROL FUNC-
TIONS .................................................. 3-1
Main switch/steering lock ................. 3-1
Keyhole cover .................................. 3-2
Indicator and warning lights ............. 3-2
Speedometer .................................... 3-3
Multi-function display ........................ 3-3
Handlebar switches .......................... 3-5
Front brake lever .............................. 3-6
Rear brake lever ............................... 3-6
Fuel tank cap .................................... 3-7
Fuel .................................................. 3-7
Catalytic converters .......................... 3-9
Kickstarter ........................................ 3-9
Seat ................................................ 3-10
Storage compartments ................... 3-10
Sidestand ....................................... 3-11
Ignition circuit cut-off system .......... 3-12
FOR YOUR SAFETY - PRE-OPERATION
CHECKS ............................................. 4-1OPERATION AND IMPORTANT RIDING
POINTS ............................................... 5-1
Starting the engine ........................... 5-1
Starting off ........................................ 5-2
Acceleration and deceleration .......... 5-2
Braking ............................................. 5-2
Tips for reducing fuel consumption .. 5-3
Engine break-in ................................ 5-3
Parking ............................................. 5-4
PERIODIC MAINTENANCE AND AD-
JUSTMENT ......................................... 6-1
Owner’s tool kit ................................. 6-2
Periodic maintenance chart for the
emission control system ............... 6-3
General maintenance and lubrication
chart .............................................. 6-4
Removing and installing panels ....... 6-7
Checking the spark plug ................... 6-8
Engine oil and oil strainer ............... 6-10
Final transmission oil ...................... 6-12
Air fi lter and V-belt case air fi lter
elements ..................................... 6-13
Checking the throttle grip free
play ............................................. 6-15
Valve clearance .............................. 6-15
Tires ............................................... 6-16
Cast wheels .................................... 6-17
Checking the brake lever free
play ............................................. 6-18Adjusting the rear brake lever free
play ............................................. 6-18
Checking the front brake pads and
rear brake shoes ......................... 6-19
Checking the brake fl uid level ........ 6-19
Changing the brake fl uid ................ 6-20
Checking and lubricating the
cables ......................................... 6-21
Checking and lubricating the throttle grip
and cable .................................... 6-21
Lubricating the front and rear brake
levers .......................................... 6-21
Checking and lubricating the
centerstand and sidestand .......... 6-22
Checking the front fork ................... 6-23
Checking the steering .................... 6-23
Checking the wheel bearings ......... 6-24
Battery ............................................ 6-24
Replacing the fuses ........................ 6-26
Replacing the headlight bulb .......... 6-27
Replacing a front turn signal light
bulb ............................................. 6-28
Replacing the tail/brake light bulb or a
rear turn signal light bulb ............ 6-28
Replacing an auxiliary light bulb ..... 6-29
Troubleshooting ............................. 6-29
Troubleshooting chart .................... 6-31
SCOOTER CARE AND STORAGE .... 7-1
Matte color caution ........................... 7-1
Care ................................................. 7-1
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Q
SAFETY INFORMATION●
Do not run engine in poorly ven-
tilated or partially enclosed areas
such as barns, garages, or car-
ports.
●
Do not run engine outdoors
where engine exhaust can be
drawn into a building through
openings such as windows and
doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution
of the scooter is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or
accessories to your scooter. Use extra
care when riding a scooter that has
added cargo or accessories. Here,
along with the information about ac-
cessories below, are some general
guidelines to follow if loading cargo to
your scooter:
The total weight of the operator,
passenger, accessories and cargo
must not exceed the maximum load
limit. Operation of an overloaded
vehicle could cause an accident.
Maximum load:
157 kg (346 lb)When loading within this weight limit,
keep the following in mind:●
Cargo and accessory weight
should be kept as low and close
to the scooter as possible. Se-
curely pack your heaviest items
as close to the center of the ve-
hicle as possible and make sure
to distribute the weight as evenly
as possible on both sides of the
scooter to minimize imbalance or
instability.
●
Shifting weights can create a
sudden imbalance. Make sure
that accessories and cargo are
securely attached to the scooter
before riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspen-
sion for your load (suspension-
adjustable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy items to the handlebar,
front fork, or front fender. Such
items can create unstable
handling or a slow steering re-
sponse.
●
This vehicle is not designed to
pull a trailer or to be attached
to a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and ac-
cessories or offer other modifications
for Yamaha vehicles. Yamaha is not
in a position to test the products that
these aftermarket companies pro-
duce. Therefore, Yamaha can neither
endorse nor recommend the use of
accessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
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Q
SAFETY INFORMATION
Aftermarket Parts, Accessories,
and Modi cations
While you may fi nd aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accesso-
ries or modifications are not suitable
because of potential safety hazards
to you or others. Installing aftermarket
products or having other modifi cations
performed to your vehicle that change
any of the vehicle’s design or opera-
tion characteristics can put you and
others at greater risk of serious injury
or death. You are responsible for inju-
ries related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under
“Loading” when mounting accesso-
ries.●
Never install accessories or carry
cargo that would impair the per-
formance of your scooter. Care-
fully inspect the accessory before
using it to make sure that it does
not in any way reduce ground
clearance or cornering clearance,
limit suspension travel, steering travel or control operation, or ob-
scure lights or refl ectors.
• Accessories fitted to the han-
dlebar or the front fork area can
create instability due to improp-
er weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be
as lightweight as possible and
should be kept to a minimum.
• Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to
lift the scooter, or the scooter
may become unstable in cross
winds. These accessories may
also cause instability when
passing or being passed by
large vehicles.
• Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the
operator and may limit control
ability, therefore, such acces-sories are not recommended.
●
Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to pro-
vide the best combination of handling,
braking, and comfort. Other tires,
rims, sizes, and combinations may not
be appropriate. Refer to page 6-17 for
tire specifications and more informa-
tion on replacing your tires.
Transporting the Scooter
Be sure to observe following instruc-
tions before transporting the scooter
in another vehicle.
●
Remove all loose items from the
scooter.
●
Point the front wheel straight
ahead on the trailer or in the truck
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EAU15582
FOR YOUR SAFETY - PRE-OPERATION CHECKSBefore using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.3-7
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specifi ed level.
• Check vehicle for oil leakage.6-10
Final transmission oil• Check vehicle for oil leakage. 6-12
Front brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fl uid level in reservoir.
• If necessary, add recommended brake fl uid to specifi ed level.
• Check hydraulic system for leakage.6-18~6-20
Rear brake• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.6-18, 6-19
Throttle grip• Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip free play and lubricate
cable and grip housing.6-15, 6-21
Wheels and tires• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.6-16, 6-17
Brake levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-21
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU17717
General maintenance and lubrication chartNO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)6000 km
(3500 mi)
12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
1 Air lter element• Replace.
√√√√
2V-belt case air lter el-
ement• Clean.
• Replace if necessary.√√√√
3 * Front brake• Check operation, fl uid level and vehicle for fl uid leakage.
√√√√√ √
• Replace brake pads. Whenever worn to the limit
4 * Rear brake• Check operation and adjust brake lever free play.
√√√√√ √
• Replace brake shoes. Whenever worn to the limit
5 * Brake hose• Check for cracks or damage.
• Check for correct routing and clamping.√√√√ √
• Replace. Every 4 years
6 * Wheels• Check runout and for damage.
√√√√
7 * Tires• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.√√√√ √
8 * Wheel bearings• Check bearing for looseness or damage.
√√√√
9 * Steering bearings• Check bearing assemblies for looseness.
• Moderately repack with lithium-soap-based grease every
12000 km (7000 mi) or 24 months.√√Re-
pack√Re-
pack√
10 * Chassis fasteners• Make sure that all nuts, bolts and screws are properly
tightened.√√√√ √
11Front brake lever pivot
shaft• Lubricate with silicone grease.
√√√√ √
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6-16
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**
1
2
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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6-17
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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EAU25991
SCOOTER CARE AND STORAGE
duced discoloring of stainless-
steel exhaust systems can be
removed through polishing.)
3. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal, includ-
ing chrome- and nickel-plated,
surfaces.
4. Use spray oil as a universal
cleaner to remove any remaining
dirt.
5. Touch up minor paint damage
caused by stones, etc.
6. Wax all painted surfaces.
7. Let the scooter dry completely
before storing or covering it.
EWA10942
WARNING
Contaminants on the brakes or
tires can cause loss of control.● Make sure that there is no oil
or wax on the brakes or tires.
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild de-
tergent.
● Before operating the vehicle,
test its braking performance
and cornering behavior.
ECA10800
NOTICE● Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.● Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.● Avoid using abrasive polishing
compounds as they will wear
away the paint.
TIP● Consult a Yamaha dealer for ad-
vice on what products to use.● Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from
the lens.
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