belt YAMAHA CYGNUS 125 2006 Owners Manual

SAFE-RIDING AND SAFETY POINTSMotorcycles are convenient vehicles; you should always keep the motorcycle in the perfect conditions to make sure
that you can ride it safely. What's more, the rider must always be at their best mental and physical status. Riding under
the influence of medication, drugs and alcohol is, of course, prohibited. (Under the influence of even a small amount of
alcohol, the rider is more likely to put him/herself in extremely dangerous conditions.)
Protective clothing is as essential to the motorcycle riders as seat belts to car drivers and passengers. Always wearing
a proper motorcycle suit, gloves and helmet will protect rider from being hurt. Note: Some riders with protective clothing
may have illusions of total safety and protection, and they will run the risk of going too fast and are apt to take chances,
facing even greater dangers in wet weather. Good motorcyclists will always have his/her wits about this situation
besides the traffic rules.
Enjoy your ride!
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*: Recommended to be finished by a YAMAHA specified maintenance station.
**: Use lithium grease.
Replace brake fluid:
1.Replace brake fluid when disassembling the main cylinder or cartridge style cylinder. Check the liquid level
in normal condition, re-fuel if necessary.
2.It's recommended that you should replace the oil seals in the main cylinder and cartridge style cylinder
every 2 years.
3.It's recommended to change brake tube every 4 years, or replace it when found crackles.Steering bearing*
Front fork*Rear shock absorber *V belt
Check the fastening degree of bearing assembly, modify and re-lubricate if necessary.**Check action/leakage, repair if necessary.
Check action/leakage, repair if necessary.
Check the wear and damages, replace if necessary.Check the accessories and fasteners in the chassis. Modify if necessary. Accessory/Fastener*
Center/side stand* Check action, repair if necessary.
Items
1,500km or 2 months
DescriptionRunning-in
500km
1,500km or 2 months
At the firstEvery
MAINTENANCECAUTION:
7-2

■ ■■ ■
■Adjust mixing ratio1.Open the rubber cover which locates
under seat. 1. Remove the crankcase cover.
2. Take out the filter to clean.
■ ■■ ■
■Crankcase filterMAINTENANCE
WARNING

Use the specified solvent to clean
the parts, never use petrol or sol-
vent with low flash point which willcause fire or explosion.CAUTION:

Do not twist the filter element toavoid of damages.
3. Apply suitable engine oil (SAE 10W-
30) to the filter element after drying.
4.Install the filter element, crankcase
cover and kick-starter back.CAUTION:

To avoid fast wearing of the parts
in belt chamber, you should main-
tain the filter element in the belt
chamber as per time and mileagelisted in the Consumer Manual.2.Adjust the screw.
NOTE:
The mixing ratio pre-set should beoperated by local agency.
7-6
mixing ratio
adjustment
screw

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