2011 YAMAHA CYGNUS 125 Owners Manual

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EAU15943
OPERATION AND IMPORTANT RIDING POINTS
EAU16780
Acceleration and decelera-
tion
(a)(b)
The speed can be adjusted by open-
ing and closing the throttle. To in-
crease the speed, turn the throttle grip
in direction (a). To reduce the speed,
turn the throttle grip in direction (b).
EAU16793
Braking
EWA10300
WARNING
● Avoid braking hard or sud-
denly (especially when leaning
over to one side), otherwise the
scooter may skid or overturn.● Railroad crossings, streetcar
rails, iron plates on road con-
struction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
down when approaching such
areas and cross them with cau-
tion.● Keep in mind that braking on
a wet road is much more dif -
cult.● Ride slowly down a hill, as
braking downhill can be very
dif cult.
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.
EAU16761
Starting offTIPBefore starting off, allow the engine to
warm up.
1. While pulling the rear brake lever
with your left hand and holding
the grab bar with your right hand,
push the scooter off the center-
stand.
2. Sit astride the seat, and then ad-
just the rear view mirrors.
3. Switch the turn signals on.
4. Check for oncoming traffi c, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signals off.
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EAU15943
OPERATION AND IMPORTANT RIDING POINTS
EAU16820
Tips for reducing fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:● Avoid high engine speeds during
acceleration.● Avoid high engine speeds with no
load on the engine.● Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffi c jams, at
traffi c lights or at railroad cross-
ings).
EAU16830
Engine break-inThere is never a more important pe-
riod in the life of your engine than the
period between 0 and 1000 km (600
mi). For this reason, you should read
the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the fi rst
1000 km (600 mi). The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided.
EAU16951
0 ~ 150 km (0 ~ 90 mi)
Avoid prolonged operation above 1/3
throttle.
After every hour of operation, stop the
engine, and then let it cool for fi ve to
ten minutes.
Vary the engine speed from time to
time. Do not operate the engine at
one set throttle position.
150 ~ 500 km (90 ~ 300 mi)
Avoid prolonged operation above 1/2
throttle.
Rev the engine freely through the
gears, but do not use full throttle at
any time.
500 ~ 1000 km (300 ~ 600 mi)
Avoid prolonged operation above
3/4 throttle.
NOTICE:
After 1000 km
(600 mi) of operation, the engine oil
must be changed and the oil strain-
er cleaned.
[ECA10351]
1000 km (600 mi) and beyond
Avoid prolonged full-throttle operation.
Vary the speed occasionally.
ECA10270
NOTICEIf any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
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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
ammable materials which
might catch re.
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6-1
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAUS1822
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.
EWA15121
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, re, or carbon monox-
ide poisoning - possibly lead-
ing to death. See page 1-1 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 ser-
vices require specialized data, knowl-
edge, and equipment. Maintenance,
replacement, or repair of the emission
control devices and systems may be
performed by any repair establish-
ment or individual that is certifi ed
(if applicable). Yamaha dealers are
trained and equipped to perform these
particular services.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU17521
Owner’s tool kitZAUM00**
1
1. Owner’s tool kitThe owner’s tool kit is located inside
the storage compartment under the
seat. (See page 3-10.)
The service information included in
this manual and the tools provided in
the owner’s tool kit are intended to as-
sist you in the performance of preven-
tive maintenance and minor repairs.
However, additional tools such as a
torque wrench may be necessary to
perform certain maintenance work
correctly.TIPIf you do not have the tools or expe-
rience required for a particular job,
have a Yamaha dealer perform it for
you.
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU46871
TIP● The annual checks must be performed every year, except if a kilometer-based maintenance, or for the UK, a
mileage-based maintenance, is performed instead.● From 30000 km (17500 mi), repeat the maintenance intervals starting from 6000 km (3500 mi).● Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
EAU46920
Periodic maintenance chart for the emission control systemNO. 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 * Fuel line• Check fuel hoses for cracks or damage.
√√√√ √
2 Spark plug• Check
• Clean and regap.√√
• Replace.
√√
3 * Valves• Check valve clearance.
• Adjust.√√√√
4 * Fuel injection• Check engine idele speed.
√√√√√ √
5*
Air induction system• Check the air cut-off valve, reed valve, and hose for
damage.
• Replace any damaged parts if necessary.√√√√ √
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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.
√√√√
2*V-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.
√√√√ √
• 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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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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