2003 YAMAHA MAJESTY 250 radiator

2-2
DESCRIPTION
2
9. Passenger seat
10. Rider seat (page 3-18)
11. Air flow louver (page 6-23)
12. Headlight (page 6-37)
13. Radiator 14. Battery (page 6-34)
15. Fuse box (page 6-36)
16. Coolant reservoir cap (page 6-20)
17. Coolant level check window (page 6-19)
18. Engine oil filler cap (page 6-15)11
12
13 16 17
18
14 15
109Right view
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6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
6 3. If the coolant is at or below the
minimum level mark, remove the
reservoir cap, add coolant to the
maximum level mark, and then
install the reservoir cap.
4. Install the battery cover.
1
1. Coolant reservoir cap
NOTE:
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radiator. If
the engine overheats, see page 6-44
for further instructions.EC000080
cC
8
8
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
8 8
If water has been used instead
of coolant, replace it with
coolant as soon as possible,
otherwise the engine may not
be sufficiently cooled and the
cooling system will not be pro-
tected against frost and corro-
sion.
8 8
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be
reduced.
Coolant reservoir capacity:
0.4 L
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6-36
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EC000102
cC
8
8
Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
8 8
To 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.
1. Turn the key to “OFF” and turn
off all electrical circuits.
2. Remove the blown fuse, and
then install a new fuse of the
specified amperage.
EC000103
cC
Do 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.
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.
4
5
79
6
18
3
2
910
1. Main fuse
2. Backup fuse (clock)
3. ABS control unit fuse
4. Radiator fan fuse
5. Ignition fuse
6. Headlight fuse
7. Signaling system fuse
8. ABS motor fuse
9. Spare fuse (×5)
10. Spare main fuse
Specified fuses:
Main fuse: 30 A
Backup fuse (clock): 10 A
ABS control unit fuse: 10 A
Radiator fan fuse: 4 A
Ignition fuse: 7.5 A
Headlight fuse: 15 A
Signaling system fuse: 15 A
ABS motor fuse: 30 A
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6-44
PERIODIC MAINTENANCE AND MINOR REPAIR
6 Engine overheating
EW000070
w
8 8
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.
8 8
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.
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.
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8-2
SPECIFICATIONS
8
Final transmission oil
Type Engine oil SAE 10W-30
(API SE)
Total amount 0.25 L
Radiator capacity
(including all routes)1.4 L
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 12 L
Carburetor
Manufacturer TEIKEI
Model × quantity Y28V-1E × 1
Spark plug
Manufacturer/model NGK/DR8EA
Spark plug gap 0.6–0.7 mm
Clutch typeDry, centrifugal automatic
Transmission
Primary reduction system Helical gear
Primary reduction ratio 40/15 (2.666)
Secondary reduction system Helical gear
Secondary reduction ratio 38/15 (2.533)Transmission type V-belt automatic
Operation Centrifugal automatic type
Chassis
Frame type Steel tube underbone
Caster angle 28°
Trail 103 mm
Tires
Front
Type Tubeless
Size 110/90-12 64L
Manufacturer/ IRC/MB67
model MICHELIN/BOPPER
Rear
Type Tubeless
Size 130/70-12 62L
Manufacturer/ IRC/MB67
model MICHELIN/BOPPER
Maximum load* 178 kg
Air pressure (cold tire)
up to 90 kg load*
Front175 kPa (1.75 kgf/cm
2, 1.75 bar)
Rear 200 kPa (2.00 kgf/cm
2, 2.00 bar)
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8-4
SPECIFICATIONS
8
Bulb voltage, wattage ×quantity
Headlight 12 V, 60/55 W ×1
12 V, 55 W ×1
Tail/brake light 12 V, 5/21 W ×2
Front turn signal light 12 V, 21 W ×2
Rear turn signal light 12 V, 18 W ×2
Auxiliary light 12 V, 5 W ×1
License plate light 12 V, 5 W ×1
Meter lighting 12 V, 1.7 W ×4
High beam indicator light 12 V, 1.7 W ×1
Turn signal indicator light 12 V, 3.4 W ×2
Oil change indicator light 12 V, 1.7 W ×1
ABS warning light 12 V, 1.7 W ×1
Fuses
Main fuse 30 A
ABS motor fuse 30 A
Headlight fuse 15 A
Signaling system fuse 15 A
ABS control unit fuse 10 A
Ignition fuse 7.5 A
Radiator fan fuse 4 A
Clock (Backup) fuse 10 A
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