Page 88 of 110

PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
6
EAU02990
Troubleshooting charts Starting problems or poor engine performance
EW000125
WARNING
@ Keep away open flames and do not smoke while checking or working on the fuel system. @
CT-1AE
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U5PSE0.book Page 43 Thursday, December 13, 2001 4:29 PM
Page 96 of 110

MOTORCYCLE CARE AND STORAGE
7-5
7a. Remove the spark plug caps
and spark plugs.
b. Pour a teaspoonful of engine
oil into each spark plug bore.
c. Install the spark plug caps onto
the spark plugs, and then place
the spark plugs on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder walls with oil.)
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
EWA00003
WARNING
_ To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over. _
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlets with plas-
tic bags to prevent moisture from
entering them.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place (less
than 0°C or more than 30°C). For
more information on storing the
battery, see page 6-33.
NOTE:_ Make any necessary repairs before
storing the motorcycle. _
U5PSE0.book Page 5 Thursday, December 13, 2001 4:29 PM
Page 101 of 110
SPECIFICATIONS
8-4
8
Electrical system
Ignition system T.C.I. (digital)
Charging system
Type A.C. magneto
Standard output 14 V, 31.5 A @ 5,000 r/min
Battery
Model GT12B-4
Voltage, capacity 12 V, 10 Ah
Headlight typeQuar tz bulb (halogen)
Bulb voltage, wattage × quantity
Headlight 12 V, 55 W × 2
Auxiliary light 12 V, 5 W × 1
Tail/brake light 12 V, 5/21 W × 2
Turn signal light 12 V, 10 W × 4
Meter lighting 12 V, 2 W × 2
Neutral indicator light 14 V, 1.2 W × 1
High beam indicator light 14 V, 1.4 W × 1
Turn signal indicator light 14 V, 1.2 W × 2
Oil level warning light L.E.D.
Engine trouble warning light 14 V, 1.4 W × 1Fuses
Main fuse 40 A
Headlight fuse 15 A
Signaling system fuse 7.5 A
Ignition fuse 10 A
Parking lighting fuse 5 A
Turn signal and hazard light
fuse 10 A
Backup fuse (odometer and
clock) 5 A
Radiator fan fuse 20 A
Electronic Fuel Injection
System fuse 10 A
U5PSE0.book Page 4 Thursday, December 13, 2001 4:29 PM
Page 106 of 110

10-INDEXAAir filter element, cleaning ...................... 6-16
Anti-theft alarm ........................................3-6BBattery ................................................... 6-33
Brake and clutch levers, checking and
lubricating ............................................ 6-29
Brake and shift pedals, checking and
lubricating ............................................ 6-29
Brake fluid, changing ............................. 6-26
Brake fluid level, checking...................... 6-25
Brake lever...............................................3-8
Brake light switch (rear), adjusting ......... 6-23
Brake pads, checking............................. 6-24
Brake pedal..............................................3-8
Brake pedal position, adjusting .............. 6-23CCables, checking and lubricating............ 6-28
Care.........................................................7-1
Clutch lever ..............................................3-7
Clutch lever free play, adjusting ............. 6-22
Conversion table ......................................8-5
Coolant .................................................. 6-12
Changing .......................................... 6-13
Checking .......................................... 6-12
Coolant temperature gauge .....................3-5
Cowlings and panels, removing and
installing ................................................6-5DDimmer switch .........................................3-6
Drive chain, lubricating ........................... 6-28
Drive chain slack ................................... 6-26
Adjusting .......................................... 6-27
Checking .......................................... 6-26EEngine break-in ....................................... 5-4
Engine oil and oil filter element ................ 6-9
Engine stop switch................................... 3-7
Engine trouble warning light .................... 3-3FFront fork, adjusting ............................... 3-13
Front fork, checking ............................... 6-31
Fuel ......................................................... 3-9
Fuel consumption, tips for reducing ......... 5-4
Fuel level warning symbol ....................... 3-2
Fuel tank breather hose
(Germany only) ................................... 3-10
Fuel tank cap ........................................... 3-9
Fuses, replacing .................................... 6-34HHandlebar switches ................................. 3-6
Hazard switch .......................................... 3-6
Headlight bulb, replacing ....................... 6-35
High beam indicator light ......................... 3-2
Horn switch ............................................. 3-6IIdentification numbers ............................. 9-1
Idling speed, adjusting ........................... 6-17
Ignition circuit cut-off system.................. 3-18
Indicator and warning lights ..................... 3-2
KKey identification number .........................9-1LLight switch ..............................................3-7
Luggage strap holders ...........................3-17MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level warning light ...............................3-3PParking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-6
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list ............................4-1RRear suspension, lubricating ..................6-30SSafety information ....................................1-1
Seat .......................................................3-11
Shifting .....................................................5-3
Shift pedal ................................................3-8
Shift points (for Switzerland only) .............5-3
Shock absorber assembly, adjusting ......3-15
Sidestand ...............................................3-17
U5PSE0.book Page 1 Thursday, December 13, 2001 4:29 PM