2012 YAMAHA CYGNUS L brake

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

SAFETY INFORMATION
1-5
1
●
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
●
Secure the scooter with tie-downs
or suitable straps that are attached
to solid parts of the scooter, such
as the frame or upper front fork tri-
ple clamp (and not, for example, to
rubber-mounted handlebars or
turn signals, or parts that could
break). Choose the location for the
straps carefully so the straps will
not rub against painted surfaces
during transport.
●
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the
scooter will not bounce excessive-
ly during transport.
EAU45371
Further safe-riding points ●
Make sure to signal clearly when
making turns.
Left turn
Right turn
●
Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.
●
Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.
●
Be careful when passing parked
cars. A driver might not see you
and open a door in your path.
●
Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.
●
The brake pads and linings could
get wet when you wash the scoot-
er. After washing the scooter,
check the brakes before riding.
●
Always wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap), and
a bright colored jacket.
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DESCRIPTION
2-3
2
EAU10430
Controls and instruments
1
2
3
4
6
5
7
8
1. Rear brake lever (page 3-5)
2. Left handlebar switches (page 3-4)
3. Speedometer unit (page 3-3)
4. Fuel gauge (page 3-4)
5. Main switch/steering lock and keyhole cover (pages 3-1 and 3-2)
6. Right handlebar switch (page 3-4)
7. Throttle grip (page 6-15)
8. Front brake lever (page 3-5)U1RSE0E0.book Page 3 Tuesday, October 18, 2011 8:56 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU45630
Fuel gauge The fuel gauge indicates the amount of
fuel in the fuel tank. The needle moves
towards “E” (Empty) as the fuel level
decreases. When the needle reaches
the red line, refuel as soon as possible.TIPTurning the key to “OFF” cancels the
fuel gauge reading.
EAU1234A
Handlebar switches Left
Right
EAU12400
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12460
Turn signal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch “ ”
Press this switch to sound the horn.
EAU12721
Start switch “ ”
With the sidestand up, push this switch
while applying the front or rear brake to
crank the engine with the starter. See
page 5-1 for starting instructions prior
to starting the engine.
1. Fuel gauge
2. Red line
1
2
1. Dimmer switch “ / ”
2. Turn signal switch “ / ”
3. Horn switch “ ”
1. Start switch “ ”
2 13
1
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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
3-12
3
EAU15305
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-
tem.)
WARNING
EWA10241
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have a
Yamaha dealer repair it if it does not
function properly.
EAU15373
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch and brake
light switches) has the following func-
tions.●
It prevents starting when the side-
stand is up, but neither brake is ap-
plied.
●
It prevents starting when either
brake is applied, but the sidestand
is still down.
●
It cuts the running engine when the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
TIPThis check is most reliable if performed
with a warmed-up engine.
1. Sidestand
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Keep the front or rear brake applied.
5. Push the start switch.
Does the engine start?
With the engine still off:
6. Move the sidestand up.
7. Keep the front or rear brake applied.
8. Push the start switch.
Does the engine start?
With the engine still running:
9. Move the sidestand down.
Does the engine stall?
The system is OK. The scooter can be ridden.The sidestand switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO NO YES
The brake switch may not be working correctly.
The scooter should not be ridden until
checked by a Yamaha dealer.• The vehicle must be placed on the center-
stand during this inspection.• If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING
U1RSE0E0.book Page 13 Tuesday, October 18, 2011 8:56 AM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.Before 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.3-6
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified 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 fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage.6-19, 6-20
Rear brake Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-18, 6-19
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