2000 YAMAHA CYGNUS 125 brake

1
2
3
4
5
6
7
8
9
EAU10210
TABLE OF CONTENTSSAFETY INFORMATION....... 1-1
Further safe-riding points ..... 1-4
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
Indicator lights ...................... 3-2
Speedometer unit................. 3-3
Fuel gauge ............................ 3-3
Handlebar switches .............. 3-3
Front brake lever .................. 3-4
Rear brake lever ................... 3-4
Fuel tank cap ........................ 3-5
Fuel...................................... 3-6
Catalytic converter ............... 3-6
Kickstarter............................ 3-7
Seat ......................................3-7
Helmet holder ....................... 3-8
Storage compartment ........... 3-8
Luggage hook ....................... 3-9
Sidestand ...........................3-10Sidestand switch operation
check...............................3-10
PRE-OPERATION CHECKS . 4-1
Pre-operation check list ........ 4-2
OPERATION AND IMPORTANT
RIDING POINTS.................... 5-1
Starting a cold engine ........... 5-1
Starting off ............................ 5-2
Acceleration and
deceleration....................... 5-2
Braking ................................. 5-2
Tips for reducing fuel consump-
tion..................................... 5-3
Engine break-in .................... 5-3
Parking ................................. 5-4
PERIODIC MAINTENANCE
AND MINOR REPAIR ............ 6-1
Owner’s tool kit ..................... 6-1
Periodic maintenance and
lubrication chart ................. 6-3
Removing and installing
panels ................................ 6-6
Checking the spark plug ....... 6-7Engine oil and oil strainer ...... 6-8
Final transmission oil..........6-10
Air filter and V-belt case air filter
elements..........................6-11
Adjusting the carburetor..... 6-13
Adjusting the throttle cable free
play ..................................6-14
Adjusting the valve
clearance.........................6-14
Tires...................................6-15
Cast wheels.......................6-17
Checking the front brake lever
free play...........................6-17
Adjusting the rear brake lever
free play...........................6-18
Checking the front brake pads
and rear brake shoes ......6-18
Checking the brake fluid
level .................................6-19
Changing the brake fluid .....6-20
Checking and lubricating the
cables..............................6-20
Checking and lubricating the
throttle grip and cable ......6-21
Lubricating the front and rear
brake levers.....................6-21
5ML-F8199-E0ch0.pmd2003/12/12, 16:02 5

1
2
3
4
5
6
7
8
9
TABLE OF CONTENTS
Checking and lubricating the
centerstand and
sidestand.........................6-21
Checking the front fork .......6-22
Checking the steering........ 6-22
Checking the wheel
bearings ...........................6-23
Battery................................6-23
Replacing the fuses............6-25
Replacing a headlight bulb .. 6-26
Replacing the tail/brake light
bulb..................................6-27
Replacing a front turn signal light
bulb..................................6-28
Rear turn signal light bulb ... 6-28
Troubleshooting..................6-29
Troubleshooting chart .........6-30
SCOOTER CARE AND STOR-
AGE ........................................ 7-1
Care...................................... 7-1
Storage ................................. 7-3SPECIFICATIONS................. 8-1
CONSUMER INFORMATION 9-1
Identification numbers .......... 9-1
5ML-F8199-E0ch0.pmd2003/12/12, 16:02 6

1-5
1
2
3
4
5
6
7
8
9
Q QQ Q
Q SAFETY INFORMATION8Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when stop-
ping on a wet surface.
8Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.
8Be careful when passing parked
cars. A driver might not see you and
open a door in your path.
8Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers become
extremely slippery when wet. Slow
down and cross them with caution.
Keep the scooter upright, otherwise
it could slide out from under you.
8The brake pads could get wet when
you wash the scooter. After wash-
ing the scooter, check the brakes
before riding.
8Always wear a helmet, gloves, trou-
sers (tapered around the cuff and
ankle so they do not flap), and a
bright colored jacket.
8Do not carry too much luggage on
the scooter. An overloaded scooter
is unstable.
5ML-F8199-E0ch1re.pmd2003/12/12, 16:02 5

2-1
1
2
3
4
5
6
7
8
9
DESCRIPTION
EAU10410
Left view
EAU10400
DESCRIPTION1. Luggage hook
2. Battery(Page:6-23)
3. Storage compartment(Page:3-8)
4. Tail/brake light(Page:6-27)
5. Rear turn signal light(Page:6-28)
6. Air filter(Page:6-11)
7. Kickstarter(Page:3-7)
8. V-belt case air filter(Page:6-11)
9. Fuel tank cap(Page:3-5)
1
23
4
5 6 7 8 9
5ML-F8199-E0ch2re.pmd2003/12/12, 16:02 1

2-3
1
2
3
4
5
6
7
8
9
DESCRIPTION
EAU10430
Controls and instruments1.Rear brake lever (Page3-4)
2.Left handlebar switches(Page:3-3)
3.Indicator lights(Page:3-2)
4.Speedometer unit(Page:3-3)
5.Fuel gauge(Page:3-3)
6.Right handlebar switches(Page:3-3)
7.Front brake lever(Page:3-4)
8.Main switch(Page:3-1)
12
34
56
7
8
5ML-F8199-E0ch2re.pmd2003/12/12, 16:02 3

3-4
1
2
3
4
5
6
7
8
9
INSTRUMENT AND CONTROL FUNCTIONS
EAU12400
Dimmer switch “
% %% %
%/
& && &
&”
Set this switch to “&” for the high beam
and to “%” for the low beam.
EAU12460
Turn signal switch “
4 44 4
4/
6 66 6
6”
To signal a right-hand turn, push this
switch to “4”. To signal a left-hand turn,
push this switch to “6”. When released,
the switch returns to the center position.
To cancel the turn signal lights, push the
switch in after it has returned to the cen-
ter position.
EAU12500
Horn switch “
* ** *
*”
Press this switch to sound the horn.
EAU12720
Start switch “
, ,, ,
,”
With the sidestand up, push this switch
while applying the front or rear brake to
crank the engine with the starter.
ECA10050
cCSee page 5-1 for starting instructions
prior to starting the engine.
EAU12900
Front brake leverZAUM00**
1
1. Front brake leverThe front brake lever is located on the
right handlebar grip. To apply the front
brake, pull this lever toward the handle-
bar grip.
EAU12950
Rear brake leverZAUM00**
1
1. Rear brake leverThe rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handle-
bar grip.
5ML-F8199-E0ch3re.pmd2003/12/12, 16:03 4

3-11
1
2
3
4
5
6
7
8
9
INSTRUMENT AND CONTROL FUNCTIONS
Turn the key on.
Put the sidestand up.Push the start switch while applying
either of the brake levers. The engine will
start.Put the sidestand down.
If the engine stalls:
The sidestand switch is OK.
5ML-F8199-E0ch3re.pmd2003/12/12, 16:03 11

4-2
1
2
3
4
5
6
7
8
9
PRE-OPERATION CHECKS
EAU15602
Pre-operation check list
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.6-8
Final transmission oil Check vehicle for oil leakage. 6-10
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 recommended brake fluid to specified level.
 Check hydraulic system for leakage.6-18, 6-19
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 cable free play.
 If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-14, 6-21
Wheels and tires Check for damage.
 Check tire condition and tread depth.
 Check air pressure.
 Correct if necessary.6-15, 6-17
Brake levers Make sure that operation is smooth.
 Lubricate lever pivoting points if necessary.6-21
5ML-F8199-E0ch4.pmd2003/12/12, 16:03 2