2012 YAMAHA CYGNUS L fuel cap

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
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Keyhole cover .................................3-2
Indicator lights and warning light ....3-2
Speedometer unit ...........................3-3
Self-diagnosis device ......................3-3
Fuel gauge ......................................3-4
Handlebar switches ........................3-4
Front brake lever ............................3-5
Rear brake lever .............................3-5
Fuel tank cap ..................................3-5
Fuel .................................................3-6
Catalytic converters ........................3-7
Kickstarter .......................................3-8
Seat ................................................3-8
Helmet holders ...............................3-9
Storage compartments ...................3-9
Carrier ...........................................3-11
Luggage hook ...............................3-11
Grab bar .......................................3-11
Sidestand ......................................3-12
Ignition circuit cut-off system ........3-12FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION 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
ADJUSTMENT................................... 6-1
Periodic maintenance chart for
the emission control system ....... 6-3
General maintenance and
lubrication chart .......................... 6-4
Removing and installing cowlings
and panels .................................. 6-7
Checking the spark plug ................. 6-9
Engine oil ..................................... 6-10
Final transmission oil .................... 6-12
Air filter and V-belt case air filter
elements ................................... 6-13
Checking the engine idling
speed ........................................ 6-15
Checking the throttle grip free
play ........................................... 6-15Valve clearance ........................... 6-15
Tires ............................................. 6-16
Cast wheels ................................. 6-17
Checking the front brake lever
free play .................................... 6-18
Adjusting the rear brake lever
free play .................................... 6-18
Checking the front brake pads
and rear brake shoes ............... 6-19
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Checking and lubricating
the cables ................................. 6-21
Checking and lubricating
the throttle grip and cable ......... 6-21
Lubricating the front and
rear brake levers ...................... 6-22
Checking and lubricating the
centerstand and sidestand ....... 6-22
Checking the front fork ................. 6-23
Checking the steering .................. 6-24
Checking the wheel bearings ....... 6-24
Battery ......................................... 6-24
Replacing the fuse ....................... 6-26
Replacing the headlight bulb ....... 6-26
Replacing a front turn signal
light bulb ................................... 6-27
Rear turn signal light and
tail/brake light ........................... 6-28
Replacing the auxiliary light
bulb ........................................... 6-28U1RSE0E0.book Page 1 Tuesday, October 18, 2011 8:56 AM

DESCRIPTION
2-2
2
EAU10420
Right view
1
3
2
4
5
9
8
7
6
1. Carrier (page 3-11)
2. Grab bar (page 3-11/5-2)
3. Fuel tank cap (page 3-5)
4. Rear storage compartment (page 3-9)
5. Helmet holder (page 3-9)
6. Front storage compartment (page 3-9)
7. Luggage hook (page 3-11)
8. Spark plug (page 6-9)9. Engine oil filler cap (page 6-10)
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INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
EAU12901
Front brake lever The front brake lever is located on the
right side of the handlebar. To apply the
front brake, pull this lever toward the
throttle grip.
EAU12951
Rear brake lever The rear brake lever is located on the
left side of the handlebar. To apply the
rear brake, pull this lever toward the
handlebar grip.
EAU37471
Fuel tank cap To remove the fuel tank cap
1. Open the seat. (See page 3-8.)
2. Turn the fuel tank cap counter-
clockwise and pull it off.
To install the fuel tank cap
1. Insert the fuel tank cap into the
tank opening and turn it clockwise
until the “ ” marks on the cap
and tank are aligned.
2. Close the seat.
1. Front brake lever
1
1. Rear brake lever
1
1. Fuel tank cap
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
WARNING
EWA11091
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13221
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-1. Fuel tank filler tube
2. Maximum fuel level
2 1
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INSTRUMENT AND CONTROL FUNCTIONS
3-7
3 ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU33522
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13445
Catalytic converters This vehicle is equipped with catalytic
converters in the exhaust system.
WARNING
EWA10862
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:●
Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
●
Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
●
Make sure that the exhaust sys-
tem has cooled down before do-
ing any maintenance work.
●
Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
NOTICE
ECA10701
Use only unleaded gasoline. The use
of leaded gasoline will cause unre-
pairable damage to the catalytic
converter.
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
5.0 L (1.32 US gal, 1.10 Imp.gal)
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SCOOTER CARE AND STORAGE
7-4
7 2. Drain the carburetor float chamber
by loosening the drain bolt; this will
prevent fuel deposits from building
up. Pour the drained fuel into the
fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug 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 wall with oil.)
WARNING! To prevent dam-
age or injury from sparking,
make sure to ground thespark plug electrodes while
turning the engine over.
[EWA10951]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
5. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter 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.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. 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
6-24.
TIPMake any necessary repairs before
storing the scooter.
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SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1860 mm (73.2 in)
Overall width:
670 mm (26.4 in)
Overall height:
1070 mm (42.1 in)
Seat height:
730 mm (28.7 in)
Wheelbase:
1250 mm (49.2 in)
Ground clearance:
100 mm (3.94 in)
Minimum turning radius:
1800 mm (70.9 in)Weight:Curb weight:
103 kg (227 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement:
102 cm³
Bore × stroke:
49.0 × 54.0 mm (1.93 × 2.13 in)
Compression ratio:
9.64 : 1
Starting system:
Electric starter and kickstarter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SE, SF, SG type or higher,
JASO standard MA
Engine oil quantity:
Periodic oil change:
1.00 L (1.06 US qt, 0.88 Imp.qt)Final transmission oil:Type:
SAE 10W-30 type SE motor oil
Quantity:
0.13 L (0.14 US qt, 0.11 Imp.qt)Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
5.0 L (1.32 US gal, 1.10 Imp.gal)Carburetor:Type × quantity:
SVR3.22-1A x 1Spark plug(s):Manufacturer/model:
NGK/CR6HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction ratio:
1.000
Final drive:
Gear
Secondary reduction ratio:
9.400 (47/15 x 39/13)
Transmission type:
V-belt automaticChassis:Frame type:
Underbone
Caster angle:
27.00 °
Trail:
75 mm (3.0 in)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U1RSE0E0.book Page 1 Tuesday, October 18, 2011 8:56 AM

INDEXAAcceleration and deceleration................. 5-2
Air filter and V-belt case air filter
elements ............................................. 6-13
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-24
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever, front..................................... 3-5
Brake lever, rear ..................................... 3-5
Brake levers, lubricating........................ 6-22
Brake pads and shoes, checking .......... 6-19
Braking .................................................... 5-2CCables, checking and lubricating .......... 6-21
Care ........................................................ 7-1
Carrier ................................................... 3-11
Catalytic converters ................................ 3-7
Centerstand and sidestand,
checking and lubricating ..................... 6-22
Cowlings and panels,
removing and installing ......................... 6-7DDimmer switch ........................................ 3-4EEngine break-in ....................................... 5-3
Engine idling speed, checking .............. 6-15
Engine oil .............................................. 6-10
Engine serial number .............................. 9-1
Engine trouble warning light.................... 3-3FFinal transmission oil ............................ 6-12
Frame serial number ............................... 9-1Front brake lever free play, checking ... 6-18
Front fork, checking .............................. 6-23
Fuel......................................................... 3-6
Fuel consumption, tips for reducing........ 5-3
Fuel gauge.............................................. 3-4
Fuel tank cap .......................................... 3-5
Fuse, replacing ..................................... 6-26
GGrab bar ............................................... 3-11HHandlebar switches ................................ 3-4
Headlight bulb, replacing ...................... 6-26
Helmet holders ....................................... 3-9
High beam indicator light ........................ 3-2
Horn switch ............................................. 3-4IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-12
Indicator lights and warning light ............ 3-2KKeyhole cover ......................................... 3-2
Kickstarter............................................... 3-8LLuggage hook ....................................... 3-11MMain switch/steering lock........................ 3-1
Maintenance and lubrication, periodic .... 6-4
Maintenance, emission control system... 6-3
Matte color, caution ................................ 7-1PParking ................................................... 5-4
Part locations .......................................... 2-1RRear brake lever free play, adjusting .... 6-18Rear turn signal light and
tail/brake light...................................... 6-28
SSafe-riding points .................................... 1-5
Safety information ................................... 1-1
Seat ......................................................... 3-8
Self-diagnosis device .............................. 3-3
Sidestand .............................................. 3-12
Spark plug, checking ............................... 6-9
Specifications .......................................... 8-1
Speedometer unit .................................... 3-3
Starting off ............................................... 5-2
Starting the engine .................................. 5-1
Start switch.............................................. 3-4
Steering, checking................................. 6-24
Storage.................................................... 7-3
Storage compartments ............................ 3-9TThrottle grip and cable,
checking and lubricating ..................... 6-21
Throttle grip free play, checking ............ 6-15
Tires ...................................................... 6-16
Troubleshooting .................................... 6-29
Troubleshooting chart ........................... 6-30
Turn signal indicator light ........................ 3-2
Turn signal light bulb (front),
replacing ............................................. 6-27
Turn signal switch ................................... 3-4VValve clearance..................................... 6-15WWheel bearings, checking ..................... 6-24
Wheels .................................................. 6-17
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