2006 YAMAHA CYGNUS 125 fuel cap

PARTS LIST AND OPERATION
1 Parts list3-1
2 Panel3-2
3 Switch operation3-3
4 Handlebar switches3-4
5 Fuel tank cap3-5
6 Front storage compartment3-5
7 Storage compartment3-5

WARNING

Do not exceed the load limit of 3 kgfor the front storage compartment.
■ ■■ ■
■Storage compartmentThe storage compartment locates
under seat, which can hold a full-cov-
ered helmet. When storing helmet,
place it upright, and the front side
should face the motorcycle head
(shown in the drawing above).
PARTS LIST AND OPERATION■ ■■ ■
■Fuel tank capThe fuel tank cap locates under the
rider seat, open the seat and you can
see the cap.
1. If you wish to remove the fuel tank
cap, turn it counterclockwise.
2. If you wish to fasten the fuel tank
cap, table the flange in the cap to the
groove in the fuel tank, and turn
clockwise.
3. Gasoline
Make sure that there is enough fuel in
the tank; fill the tank till the fuel reaches
the bottom of filler tube as per
illustration.
Fuel tank capacity: 5.4L
■ ■■ ■
■Front storage compartment
3-5
Fuel tank cap
2
1

■ ■■ ■
■Tyre1.Tyre pressure:
Adjust the tyre pressure to value
specified before riding.
2. Tyre casing
Check the situation of the tyre before
riding. If the tyre casing is over worn,
or there are pins or broken glasses, or
the tyre casing has crackles, ask the
agency to repair it, replace if
necessary.
■ ■■ ■
■Petrol levelMake sure that there is sufficient petrol
in the fuel tank.
WARNING

Do not splash or overfill the gaso-
line to the exhaust pipe when
fueling. There are agents equipped
in the exhaust pipe. The surface
temperature is very high, and it mayburn when the gasoline is spilled.■ ■■ ■
■Throttle gripPlace the throttle grip to check the
operation and free gaps. Make sure
that the grip will return to the original
position by spring force when releasing.
Ask the agency to adjust if necessary.Specified
fuel
CapacityOnly with unleaded petrol (#93 unleaded
fuel recommended)
5.4L totally
front tyre: 175Kpa
rear tyre: 200Kpa
front tyre: 175Kpa
rear tyre: 225Kpa 1 person Tyre pressure
2 persons
NOTE: Check the tyre pressure when the tyreis cooled.
WARNING

Never overload at any time,
otherwise, it may cause hazardbecause of tyre bursting.Check the front headlight, position light,
turn signal, rear light, stoplight, instru-
ment light and all the other indicator
lights, and make sure that they run
well.
■ ■■ ■
■SwitchesCheck the operation of the switches
for front headlight, position light, turn
signal, stoplight, horn and starter, main
switch.■ ■■ ■
■Lights and signal light
PRE-OPERATION CHECKS
6-3
foreign material (pin,gallet)
alligatoring, broke
wear limit indicator
3-5mn

CAUTION:

Before installing the drain plug,
make sure that the O-ring, springand filter screen is in position.Locking torque of drain bolt: 2.0kg.m
Locking torque of drain plug: 3.2kg.m4.Clean the filter screen.
5.Inspect the O-ring for damages, re-
place if necessary.
6.Tight the drain bolt and drain plug
according to the torque specification.Oil replaced periodicallyOil replaced periodically
(including the oil needed
for replacing filter element)Special engine oil used
for four-stroke motor-
cycleYAHAMA Four-stroke
YAMALUBE engine oil,
SAE 10W-30 combus-
tion engine oil (API) ,
Spec. SF1.0L
1.2LMAINTENANCE
CAUTION:

When re-fueling, make sure that no
foreign materials fall into the oil
tank.
7.Re-install the engine oil cap.
8.Start the engine, warm the vehicle
for a few minutes, and check for
leakage. While the engine oil leaking,
shut off the engine and inspect the
parts leaking.
9.Shut off the engine, check the oil
level. Re-install the oil cap.
7-4

Make sure that no foreign material
falls into gear box when refueling
or discharging gear oil. Prevent the
gear oil from adhering to the tyre.
4.Reinstall the refuel plug and check
the leakage of gear oil.
3.Reinstall the air filter cover and tight
the screws to prevent the un-filtered
air flowing into the engine.
MAINTENANCE
■ ■■ ■
■Gear oil1.Park the vehicle on a flat place, re-
move refuel plug and drain bolt to dis-
charge the gear oil.
2.Tight the drain bolt to 2.3kgm.
3.Refuel gear oil.Total capacity of gear oilWhile exchanging
Gear oil type150cc
130cc
YAHAMA special gear oil
YAHAMA special four-stroke engine oil
■ ■■ ■
■Air filter1.Loose the screws and remove the air
filter cover.
2.Take out the filter element, clean or
replace if necessary.
WARNING
7-5
refuel plug
drain bolt

SPECIFICATIONDimension and weightOverall length
Overall width
Overall height
Maximum load
Wheel baseMinimum ground clearanceBasic weight
1,860mm
670mm
1,045mm
153 ± 7kg
1,250mm ± 30mm
95mm ± 20mm
105kg ± 7kg4-stroke SOHC
Single cylinder, Forward inclined
125cc
51.5mm
× 60mm
9.5:1
electrical/kick-start
Forced lubrication
1.2L
■ ■■ ■
■Specification
Item Specification
Item Specification
Engine
ModelCylinder arrangementAir displacement
Bore x Stroke
Compression ratio
Starting system
LubricationE/G lubrication oil capacity
Electrical devices
Ignition spark modelAccumulator capacityAccumulator modelTransmission devicePrimary reductionReduction ratio(idem)Second reductionReduction ratio(idem)ClutchHelical gear
40/15
Spur gear
38/13
Dry, centrifugal
C7ER
12V, 6AH
GTX7A-BS/YTX7A-BS
Variable speed ratio
Model
Shift type
Variable speed ratioV-belt infinite variable speed
Infinite variable speed
0.852 - 2.572 FuelTank capacity
5.4L
9-1