2004 YAMAHA VERSITY 300 check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6Engine overheating
EW000070
•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 hissing
sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
WARNING
NOTE :
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as 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.
6-37

SCOOTER CARE AND STORAGE
7 Long-term
Before storing your scooter for several
months:
1. Follow all the instructions in the
"Care" section of this chapter.
2. Drain the carburetor float chamber
by loosening the drain bolt; this will
prevent fuel deposits from building
up. Pour the drained fuel into the
fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit
sparking during the next step.)d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark
plug cap.
EWA00003
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
5. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/
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.
Alternatively, turn the wheels a
little every month in order to
prevent the tires from becoming
degraded in one spot.
WARNING
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
excessively cold or warm place
(less than 0 °C or more than 30
°C). For more information on
storing the battery, see page
6-30.
NOTE :
Make any necessary repairs before
storing the scooter.
7-4

INDEX
A
Acceleration and deceleration ............. 5-3
Air filter and V-belt case air filter
elements, cleaning ....................... 6-18
Anti-theft alarm (optional) ................... 3-7
Auxiliary DC jack ............................... 3-18
Anti-theft device housing ................... 3-14
B
Battery .............................................. 6-29
Battery voltage / coolant
temperature gauge ......................... 3-3
Brake fuid level, checking ................. 6-24
Brake fluid, changing ........................ 6-25
Bake lever, front .................................. 3-9
Brake lever, rear .................................. 3-9
Brake levers, lubricating .................... 6-26
Brake pads, checking ........................ 6-24Braking ................................................ 5-3
C
Cables, checking and lubricating ...... 6-26
Carburator, adjusting ......................... 6-20
Care .................................................... 7-1
Catalytic converter ............................ 3-11
Centerstand and sidestand, checking
and lubricating .............................. 6-27
Conversion table ................................. 8-4
Coolant .............................................. 6-17
Cowlings and panels, removing
and installing .................................. 6-5
E
Engine break-in ................................... 5-4
Engine oil .......................................... 6-13
F
Final transmission oil ........................ 6-16
Front and rear brake lever free play,
adjusting ....................................... 6-23
Front fork, checking ........................... 6-27
Fuel ................................................... 3-10
Fuel consumption, tips for reducing .... 5-4
Fuel gauge .......................................... 3-3
Fuel tank cap .................................... 3-10Fuses, replacing ................................ 6-30
H
Handlebar switches ............................. 3-8
Dimmer switch ............................... 3-8
Engine stop switch ......................... 3-8
Horn switch .................................... 3-8
Hazard switch ................................ 3-9
Pass switch .................................... 3-8
Start switch .................................... 3-8
Turn signal switch ........................... 3-8
Headlight bulb, replacing ................... 6-32
I
Identification number ........................... 9-1
Ignition circuit cut-off system ............. 3-16
Indicator lights ..................................... 3-2
High beam indicator light ............... 3-2
Low beam indicator light ................ 3-2
Turn signal indicator lights .............. 3-2
K
Key identification number .................... 9-1
L
License plate liht bulb, replacing ....... 6-35

INDEX
Storage compartments ...................... 3-12
T
Tail/brake light bulb or rear turn
signal light bulb, replacing ............ 6-34
Throtlle cable free play, adjusting ...... 6-20
Throttle grip and cable,
checking and lubricating .............. 6-26
Tires .................................................. 6-21
Tool kit ................................................. 6-1
Troubleshooting ................................. 6-35
Troubleshooting charts ...................... 6-36
Turn signal light bulb (front),
replacing ...................................... 6-34
V
Valve clearance, adjusting ................ 6-21
Vehicule identification number ............ 9-1
W
Wheel bearing, checking ................... 6-29
Wheels .............................................. 6-23 Luggage hook ................................... 3-15
M
Main switch/steering lock .................... 3-1
Model label .......................................... 9-2
Multi-function display .......................... 3-4
P
Parking ................................................ 5-5
Part locations ...................................... 2-1
Periodic maintenance and lubrication
chart ............................................... 6-2
Pre-operation check list ...................... 4-1
S
Safe-riding points ................................ 1-2
Seat ................................................... 3-12
Shock absorber assemblies,
adjusting ....................................... 3-14
Sidestand .......................................... 3-16
Spark plug, checking ......................... 6-11
Specifications ...................................... 8-1
Speedometer ...................................... 3-2
Starting off .......................................... 5-2
Starting the engine .............................. 5-1
Steering, checking ............................ 6-28
Storage ............................................... 7-3