2004 YAMAHA VERSITY 300 engine

OPERATION AND IMPORTANT RIDING POINTS
5
EAU00461
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
EW000058
•Since the engine and exhaust
system can become very hot,
park in a place where
pedestrians or children are not
likely to touch them.
•Do not park on a slope or on
soft ground, otherwise the
scooter may overturn.
EC000062
Never park in an area where there
are fire hazards such as grass or
other flammable materials.
WARNING
CAUTION:
5-5

EAU00462
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit ........................................................ 6-1
Periodic maintenance and lubrication chart ............ 6-2
Removing and installing cowlings and panels ........ 6-5
Checking the spark plug ....................................... 6-11
Engine oil .............................................................. 6-13
Final transmission oil ............................................ 6-16
Coolant .................................................................. 6-17
Air filter and the V-belt case air filter elements ...... 6-18
Adjusting the carburetor ........................................ 6-20
Adjusting the throttle cable free play ..................... 6-20
Adjusting the valve clearance ............................... 6-21
Tires ...................................................................... 6-21
Cast wheels .......................................................... 6-23
Adjusting the front and rear brake lever
free play ................................................................ 6-23
Checking the front and rear brake pads ................ 6-24
Checking the brake fluid level ............................... 6-24
Changing the brake fluid ....................................... 6-25Checking and lubricating the cables ..................... 6-26
Checking and lubricating the throttle grip
and cables ............................................................. 6-26
Lubricating the front and rear brake levers ........... 6-26
Checking and lubricating the centerstand
and sidestand ........................................................ 6-27
Checking the front fork .......................................... 6-27
Checking the steering ........................................... 6-28
Checking the wheel bearings ................................ 6-29
Battery ................................................................... 6-29
Replacing the fuses .............................................. 6-30
Replacing a headlight bulb .................................... 6-32
Replacing a front turn signal light bulb .................. 6-34
Replacing tail/brake light bulb
or rear turn signal light bulb .................................. 6-34
Replacing the license plate light bulb .................... 6-35
Troubleshooting ..................................................... 6-35
Troubleshooting charts .......................................... 6-36
6

PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00464
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in the
safest and most efficient condition pos-
sible. The most important points of ins-
pection, adjustment, and lubrication are
explained on the following pages.
The intervals given in the periodic main-
tenance and lubrication chart should be
simply considered as a general guide
under normal riding conditions. However,
DEPENDING ON THE WEATHER,
TERRAIN, GEOGRAPHICAL LOCA-
TION, AND INDIVIDUAL USE, THE
MAINTENANCE INTERVALS MAY
NEED TO BE SHORTENED.
EW000060
If you are not familiar with scooter
maintenance work, have a Yamaha
dealer do it for you.
WARNING
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EW000061
This scooter is designed for use on
paved roads only. If this scooter is
operated in abnormally dusty,
muddy or wet conditions, the air filter
element should be cleaned or
replaced more frequently, otherwise
rapid engine wear may result.
Consult a Yamaha dealer for proper
maintenance intervals.
WARNING
EAUT0027*
Owner's tool kit
The owner's tool kit is located inside the
front storage compartment A. (See
page 3-12 for front storage
compartment opening procedures.)
The service information included in this
manual and the tools provided in the
owner's tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs.
However, additional tools such as a
torque wrench may be necessary to
perform certain maintenance work
correctly.
NOTE :
If you do not have the tools or
experience required for a particular job,
have a Yamaha dealer perform it for you.
EW000063
Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle unsafe
for use. Consult a Yamaha dealer
before attempting any changes.
WARNING
6-1

PERIODIC MAINTENANCE AND MINOR REPAIR
6
•Check operation, fluid level and vehicle for fluid leakage.
√√√√√ √7 * Rear brake(See NOTE on page 6-4.)
•Replace brake pads. Whenever worn to the limit
8 * Brake hoses•Check for cracks or damage.√√√√ √•Replace. (See NOTE on page 6-4.) Every 4 years
9 * Wheels•Check runout and for damage.√√√√
•Check tread depth and for damage.
10 * Tires•Replace if necessary.
√√√√ √
•Check air pressure.
•Correct if necessary.
11 * Wheel bearings•Check bearing for looseness or damage.√√√√
12 * Steering bearings•Check bearing play and steering for roughness.√√√√√•Lubricate with lithium-soap-based grease. Every 20,000 km
13 * Chassis fasteners•Make sure that all nuts, bolts and screws are
√√√√ √
properly tightened.
14 Sidestand, Centerstand•Check operation.
√√√√ √
•Lubricate.
15 * Sidestand switch•Check operation.√√√√√ √
16 * Front fork•Check operation and for oil leakage.√√√√
17 * Shock absorber assemblies•Check operation and shock absorbers for oil leakage.√√√√
18 * Carburetor•Adjust engine idling speed.√√√√√ √
ODOMETER READING (x 1,000 km)
NO. ITEMCHECK OR MAINTENANCE JOB
1
ANNUAL
CHECK
10 20 30 40
6-3

PERIODIC MAINTENANCE AND MINOR REPAIR
6
•Change. (See page 3-7 for more information about the√When the oil change indicator comes on19 Engine oil oil change indicator)( Every 3000 km)
•Check oil level and vehicule for oil leakage. Every 3,000 km√
20 * Engine oil strainer•Clean.√
21 * Cooling system•Check coolant level and vehicule for coolant leakage.√√√√ √•Change. Every 3 years
22Final transmission oil•Check vehicle for oil leakage.√√ √•Change.√√√
23 * V-belt•Replace. Every 20,000 km
24 *Front and rear brake
•Check operation.√√√√√ √
switches
25 Moving parts and cables•Lubricate.√√√√ √
Throttle grip housing•Check operation and free play.
26 *
and cable•Adjust the throttle cable free play if necessary.√√√√ √
•Lubricate the throttle grip housing and cable.
27 *Lights, signals•Check operation.
√√√√√ √
and switches•Adjust headlight beam.
ODOMETER READING (x 1,000 km)
NO. ITEMCHECK OR MAINTENANCE JOB
1
ANNUAL
CHECK
10 20 30 40
EAU03884*
NOTE :
•The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
•Hydraulic brake service
•Regularly check and, if necessary, correct the brake fluid level.
•Every two years change the brake fluid.
•Replace the brake hoses every four years and if cracked or damaged.
6-4

PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03620
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic main-
tenance and lubrication chart. In addi-
tion, the condition of the spark plug can
reveal the condition of the engine.
To remove the spark plug
1. Remove cowling B. (See page 6-
8 for cowling removal and instal-
lation procedures.)
2. Remove the spark plug cap.
1. Spark plug
6-11
1
ZAUM0438
12
ZAUM0585
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Panel E
To remove the panel
Remove the screw, and then pull the
panel off as shown.
To install the panel
Place the panel in the original position,
and then install the screw.
1. Panel E
2. Screw

PERIODIC MAINTENANCE AND MINOR REPAIR
6 3. Remove the spark plug as shown,
with the spark plug wrench
included in the owner's tool kit.To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the scoo-
ter is ridden normally).
NOTE :
If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the scooter.
2. Check the spark plug for electrode
erosion and excessive carbon or
other deposits, and replace it if
necessary.
Specified spark plug:
DR8EA (NGK)To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
Spark plug gap:
0.6 – 0.7 mm
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.
1. Spark plug wrencha. Spark plug gap
6-12
1
ZAUM0036
a
ZAUM0037

PERIODIC MAINTENANCE AND MINOR REPAIR
6Tightening torque:
Spark plug:
17.5 Nm (1.75 m
•kg)
NOTE :
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4 – 1/2 turn
past finger tight. However, the spark
plug should be tightened to the
specified torque as soon as possible.
4. Install the spark plug cap.
5. Install the cowling.
6-13
EAUM0103*
Engine oil
The engine oil level should be checked
before each ride. In addition, the oil
must be changed at the intervals
specified in the periodic maintenance
and lubrication chart and when the oil
change indicator comes on.To check the engine oil level
1. Place the scooter on the
centerstand.
NOTE :
Make sure that the scooter is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.