2011 YAMAHA CYGNUS 125 oil level

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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3-5
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
interval will be at every 3000 km
(1800 mi) thereafter.
●
If the oil change tripmeter in-
dicates “-----”, have a Yamaha
dealer check the multi-function
display, as it may be faulty.
Clock
To set the clock:
1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2. When the hour digits start fl ash-
ing, push the “SELECT” button to
set the hours.
3. Push the “RESET” button, and
the fi rst minute digit will start
fl ashing.
4. Push the “SELECT” button to set
the fi rst minute digit.
5. Push the “RESET” button and
the second minute digit will start
fl ashing.
6. Push the “SELECT” button to set
the second minute digit.
7. Push the “RESET” button and
then release it to start the clock.Fuel meter
The fuel meter indicates the amount
of fuel in the fuel tank. The display
segments of the fuel meter disappear
towards “E” (Empty) as the fuel level
decreases. When “
” starts fl ashing,
refuel as soon as possible. When the
key is turned to “ON”, all of the display
segments of the fuel meter will appear
for a few seconds, and then shown
actual fuel level.
EAU12348
Handlebar switchesLeftZAUM00**
3 1
2
1. Dimmer switch “%/&”
2. Turn signal switch “4/6”
3. Horn switch “*”RightZAUM00**
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1. Start switch “,”
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4-2
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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6-5
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENTNO. 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)
12Rear brake lever pivot
shaft• Lubricate with lithium-soap-based grease.
√√√√ √
13 Sidestand, centerstand• Check operation.
• Lubricate.√√√√ √
14 * Sidestand switch• Check operation.
√√√√√ √
15 * Front fork• Check operation and for oil leakage.
√√√√
16 *Shock absorber as-
sembly• Check operation and shock absorber for oil leakage.
√√√√
17 Engine oil• Change. (See page 6-10.)
• Check oil level and vehicle for oil leakage.√Every 3000 km (1800 mi)
18 * Engine oil strainer• Clean.
√Every 6000 km (3500 mi)
19 Final transmission oil• Check vehicle for oil leakage.
• Change.√√√√√ √
20 * V-belt• Replace. Every 18000 km (10500 mi)
21 *Front and rear brake
switches• Check operation.
√√√√√ √
22Moving parts and ca-
bles• Lubricate.
√√√√ √
23 * Throttle grip• Check operation.
• Check throttle grip free play, and adjust if necessary.
• Lubricate cable and grip housing.√√√√ √
24 *Lights, signals and
switches• Check operation.
• Adjust headlight beam.√√√√√ √
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6-6
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAUT2710
TIP● Air fi lter and V-belt fi lter
• This model’s air fi lter is equipped with a disposable oil-coated paper element, which must not be cleaned with
compressed air to avoid damaging it.
• The air fi lter element needs to be replaced and V-belt fi lter needs to be serviced more frequently when riding in
unusually wet or dusty areas.● Hydraulic brake service
• After disassembling the brake master cylinder and caliper, always change the fl uid. Regularly check the brake
fl uid level and fi ll the reservoir as required.
• Every two years replace the internal components of the brake master cylinder and caliper, and change the brake
fl uid.
• Replace the brake hose every four years and if cracked or damaged.
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6-10
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAUT1352
Engine oil and oil strainerThe engine oil level should be
checked before each ride. In addition,
the oil must be changed and the oil
strainer cleaned at the intervals speci-
fi ed in the periodic maintenance and
lubrication chart. The engine oil must
also be changed at the initial 1000 km
(600 mi) and when the oil change indi-
cator fl ashes. The oil change tripmeter
must be reset after the initial 1000 km
(600 mi). (See page 3-3 for reset pro-
cedures.)
To check the engine oil level
1. Place the vehicle on the center-
stand. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil
settles, remove the oil fi ller cap,
wipe the dipstick clean, insert it
back into the oil fi ller hole (without
screwing it in), and then remove it
again to check the oil level.
TIPThe engine oil should be between the
minimum and maximum level marks.ZAUM00**
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1. Maximum level mark
2. Minimum level mark4. If the engine oil is below the mini-
mum level mark, add suffi cient oil
of the recommended type to raise
it to the correct level.
5. Insert the dipstick into the oil fi ller
hole, and then tighten the oil fi ller
cap.
To change the engine oil and clean
the oil strainer
1. Start the engine, warm it up for
several minutes, and then turn it off.
2. Place an oil pan under the engine
to collect the used oil.
3. Remove the engine oil fi ller cap
and drain bolts to drain the oil
from the crankcase.
NOTICE:

When removing the engine oil
drain bolt, the O-ring, spring,
and oil strainer will fall out.
Take care not to lose these
parts.
[ECA10411]
ZAUM00**
1
1. Oil fi ller cap
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENTZAUM00**
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1. Engine oil drain bolt AZAUM00**
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1. Engine oil drain bolt B4. Clean the oil strainer with solvent,
and then check it for damage and
replace it if necessary.
5. Check the O-ring for damage and
replace it if necessary.
6. Install the oil strainer, spring,
O-ring and engine oil drain bolts,
and then tighten the drain bolts to
the specifi ed torque.Tightening torque:
Engine oil drain bolt A:
20 Nm (2.0 m·kgf, 14.5 ft·lbf)
Engine oil drain bolt B:
20 Nm (2.0 m·kgf, 14.5 ft·lbf)TIPMake sure that the O-ring is properly
seated.
7. Refi ll with the specifi ed amount of
the recommended engine oil, and
then install and tighten the engine
oil fi ller cap.Recommended engine oil:
See page 8-1.
Oil change quantity:
0.9 L (0.95 US qt, 0.79 Imp.qt)
ECA11670
NOTICE● Do not use oils with a diesel
speci cation of “CD” or oils of
a higher quality than speci ed.
In addition, do not use oils la-
beled “ENERGY CONSERVING
II” or higher.
● Be sure no foreign material en-
ters the crankcase.
8. Start the engine, and then let
it idle for several minutes while
checking it for oil leakage. If oil is
leaking, immediately turn the en-
gine off and check for the cause.
9. Turn the engine off, and then
check the oil level and correct it if
necessary.
10. Reset the oil change tripmeter.
(See page 3-3 for reset proce-
dures.)
TIPIf the engine oil is changed before
the oil change indicator fl ashes (i.e.
before the periodic oil change interval
has been reached), the oil change
tripmeter must be reset after the
oil change for the next periodic oil
change to be indicated at the correct
time.
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6-20
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
Observe these precautions:● When checking the fl uid level,
make sure that the top of the
master cylinder is level by turning
the handlebars.● Use only the recommended qual-
ity brake fl uid, otherwise the
rubber seals may deteriorate,
causing leakage and poor braking
performance.Recommended brake uid:
DOT 4● Refi ll with the same type of brake
fl uid. Mixing fl uids may result in
a harmful chemical reaction and
lead to poor braking performance.● Be careful that water does not en-
ter the master cylinder when refi ll-
ing. Water will signifi cantly lower
the boiling point of the fl uid and
may result in vapor lock.● Brake fl uid may deteriorate
painted surfaces or plastic parts.
Always clean up spilled fl uid im-
mediately.● As the brake pads wear, it is normal for the brake fl uid level to
gradually go down. However, if
the brake fl uid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22721
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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