2002 YAMAHA MAJESTY 250 light

6-10
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03617
Cowling C
To remove the cowling1. Remove the cowling screws.
1
1. Screw (×2)
2. Push the cowling in lightly, and
then pull it back as shown.
ECA00067
cCTake care not to damage the tabs
on the cowling when removing and
or installing it.aaa. Push.
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6-13
PERIODIC MAINTENANCE AND MINOR REPAIR
63. Remove the spark plug as
shown, with the spark plug
wrench included in the owner’s
tool kit.
1
1. Spark plug wrench
To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
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.
a
a. Spark plug gap
To check the spark plug
1. Check that the porcelain insula-
tor around the center electrode
of the spark plug is a medium-to-
light tan (the ideal color when the
scooter 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 elec-
trode erosion and excessive car-
bon or other deposits, and
replace it if necessary.
Specified spark plug:
DR8EA (NGK)
Spark plug gap:
0.6–0.7 mm
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
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.To check the engine oil level
1. Place the scooter on the center-
stand.
NOTE:
Make sure that the scooter is posi-
tioned 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.
EAU03119
Engine oilEngine oilThe engine oil level should be
checked before each ride. In addition,
the oil must be changed at the inter-
vals specified in the periodic mainte-
nance and lubrication chart and when
the oil change indicator light comes
on. Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6 4. Check the washer for damage
and replace it if necessary.
5. Install the washer and the engine
oil drain bolt, and then tighten
the drain bolt to the specified
torque.
NOTE:
Make sure that the washer is properly
seated.
12
1. Engine oil drain bolt
2. Washer
7. Start the engine, and then let it
idle for several minutes while
checking it for oil leakage. If oil is
leaking, immediately turn the
engine off and check for the
cause.
8. Reset the oil change indicator
light according to the following
procedure. 6. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil
filler cap.
EC000030
cC8Do not put in any chemical
additives or use oils with a
grade of CD or higher. Also, be
sure not to use oils labeled
“ENERGY CONSERVING
II” or
higher.
8Be sure no foreign material
enters the crankcase.
Tightening torque:
Engine oil drain bolt:
20 Nm (2.0 m0kgf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Periodic oil change:
1.2 L
Total amount (dry engine):
1.4 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6To reset the oil change indicator
light
1. Turn the key to “ON”.
1
1. Reset button
NOTE:
If the engine oil is changed before the
oil change indicator light comes on
(i.e. before the periodic oil change
interval has been reached), the indi-
cator light must be reset after the oil
change for the next periodic oil
change to be indicated at the correct
time. To reset the oil change indicator
light before the periodic oil change
interval has been reached, follow the
above procedure, but note that the
indicator light will come on for 1.4
seconds after releasing the reset but-
ton, otherwise repeat the procedure.
2. Hold the reset button pushed for
two to five seconds.
3. Release the reset button, and
the oil change indicator light will
go off.
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PERIODIC MAINTENANCE AND MINOR REPAIR
67. Check the final transmission
case for oil leakage. If oil is leak-
ing, check for the cause.
EAU04591
CoolantCoolantThe coolant reservoir is located
under the battery cover. (See page
6-34 for battery cover removal and
installation procedures.)
To check the coolant level
1. Place the scooter on a level sur-
face and hold it in an upright
position.NOTE:
8The coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
8Make sure that the scooter is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
2. Check the coolant level in the
coolant reservoir.NOTE:
The coolant should be between the
minimum and maximum level marks.
1
2
1. Maximum level mark
2. Minimum level mark
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04110
Replacing the fusesFuses, replacingThe fuse boxes are located under the
battery cover. (See page 6-34 for bat-
tery cover removal and installation
procedures.)
If a fuse is blown, replace it as fol-
lows.
1. Turn the key to “OFF” and turn
off all electrical circuits.
4
5
67
1
32
78
1. Main fuse
2. Backup fuse (clock)
3. Radiator fan fuse
4. Ignition fuse
5. Headlight fuse
6. Signaling system fuse
7. Spare fuse (×4)
8. Spare main fuse
EC000102
cC8Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
8To charge a sealed-type (MF)
battery, a special (constant-
voltage) battery charger is
required. Using a conventional
battery charger will damage
the battery. If you do not have
access to a sealed-type (MF)
battery charger, have a
Yamaha dealer charge your
battery.
2. Remove the blown fuse, and
then install a new fuse of the
specified amperage.
EC000103
cCDo not use a fuse of a higher
amperage rating than recommend-
ed to avoid causing extensive
damage to the electrical system
and possibly a fire.3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates. Specified fuses:
Main fuse: 30 A
Backup fuse (clock): 10 A
Radiator fan fuse: 4 A
Ignition fuse: 7.5 A
Headlight fuse: 15 A
Signaling system fuse: 15 A
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3. Disconnect the headlight cou-
pler, and then remove the bulb
cover.
1
2
1. Headlight coupler
2. Bulb cover
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04128
Replacing a headlight bulbHeadlight bulb, replacingThis scooter is equipped with quartz
bulb headlights. If a headlight bulb
burns out, replace it as follows.
1. Place the scooter on the center-
stand.
2. Remove panel A. (See page
6-11 for panel removal and
installation procedures.) 4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
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