check engine YAMAHA VERSITY 300 2005 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-24
6 2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
CAUTION:
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU23280
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
ZAUM0457

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU25921
Troubleshooting charts Starting problems or poor engine performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
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 plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
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.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6 Engine overheating
WARNING
EWA10400


Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.


After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.

SCOOTER CARE AND STORAGE
7-4
7
WARNING
EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turningthe engine over.
5. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter 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.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. 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 (30 °F) or more than 30°C (90 °F)]. For more information
on storing the battery, see page
6-25.
NOTE:Make any necessary repairs beforestoring the scooter.

INDEX
AAcceleration and deceleration ................ 5-2
Air filter and V-belt case air filter
elements, cleaning ............................. 6-14
Anti-theft alarm (optional) ....................... 3-7
Anti-theft device housing ...................... 3-13
Auxiliary DC jack .................................. 3-17BBattery .................................................. 6-25
Battery voltage/coolant temperature
gauge ................................................... 3-3
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever, front .................................... 3-8
Brake lever, rear ..................................... 3-9
Brake levers, lubricating ....................... 6-22
Braking ................................................... 5-2CCables, checking and lubricating .......... 6-22
Carburetor,adjusting ............................. 6-16
Care ........................................................ 7-1
Catalytic converter ................................ 3-11
Centerstand and sidestand, checking
and lubricating .................................... 6-23
Coolant ................................................. 6-13
Cowlings and panels, removing and
installing ............................................... 6-5DDimmer switch ........................................ 3-7
Display, multi-function ............................ 3-4EEngine break-in ...................................... 5-3
Engine oil .............................................. 6-10
Engine stop switch.................................. 3-8
FFinal transmission oil.............................6-12
Front and rear brake lever free play,
checking .............................................. 6-19
Front and rear brake pads, checking .... 6-20
Front fork, checking...............................6-23
Fuel ....................................................... 3-10
Fuel consumption, tips for reducing ........ 5-3
Fuel gauge .............................................. 3-3
Fuel tank cap........................................... 3-9
Fuses, replacing .................................... 6-26HHandlebar switches ................................. 3-7
Hazard switch.......................................... 3-8
Headlight bulb, replacing....................... 6-27
High beam indicator light......................... 3-2
Horn switch ............................................. 3-8IIdentification numbers ............................. 9-1
Ignition circuit cut-off system ................. 3-15
Indicator lights .........................................3-2KKey identification number ........................ 9-1LLicense plate light bulb, replacing ......... 6-30
Low beam indicator light ......................... 3-2
Luggage hook ....................................... 3-14MMain switch/steering lock ........................ 3-1
Model label .............................................. 9-2PParking ....................................................5-4
Part locations .......................................... 2-1
Pass switch ............................................. 3-7Periodic maintenance and lubrication
chart...................................................... 6-2
Pre-operation check list .......................... 4-2
SSafe-riding points .................................... 1-4
Safety information ................................... 1-1
Seat ...................................................... 3-11
Shock absorber assemblies,
adjusting ............................................. 3-14
Sidestand .............................................. 3-15
Spark plug, checking .............................. 6-9
Specifications.......................................... 8-1
Speedometer .......................................... 3-2
Starting off .............................................. 5-2
Starting the engine.................................. 5-1
Start switch ............................................. 3-8
Steering, checking ................................ 6-24
Storage ................................................... 7-3
Storage compartment .................. 3-12, 3-13TTail/brake light bulb or rear turn signal
light bulb, replacing............................. 6-29
Throttle cable free play, checking ......... 6-16
Throttle grip and cable, checking and
lubricating ........................................... 6-22
Tires ...................................................... 6-17
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-30
Troubleshooting charts ......................... 6-31
Turn signal indicator lights ...................... 3-2
Turn signal light bulb (front),
replacing ............................................. 6-28
Turn signal switch ................................... 3-7