Page 10 of 80
SAFETY INFORMATION
1-4
1
motorcycle’s electrical system an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Gasoline and exhaust gas
GASOLINE IS HIGHLY FLAMMA-
BLE:
Always turn the engine off when
refueling.
Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.
Never refuel while smoking or in
the vicinity of an open flame.
Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has ad-
equate ventilation.
Always turn the engine off before
leaving the motorcycle unattended
and remove the key from the main
switch. When parking the motorcy-cle, note the following:
The engine and exhaust system
may be hot, therefore, park the
motorcycle in a place where pe-
destrians or children are not like-
ly to touch these hot areas.
Do not park the motorcycle on a
slope or soft ground, otherwise it
may fall over.
Do not park the motorcycle near
a flammable source (e.g., a ker-
osene heater, or near an open
flame), otherwise it could catch
fire.
When transporting the motorcycle
in another vehicle, make sure that
it is kept upright and that the fuel
cock(s) are turned to “ON” or
“RES” (for vacuum type)/“OFF”
(for manual type). If the motorcycle
should lean over, gasoline may
leak out of the carburetor or fuel
tank.
If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into youreyes, see your doctor immediate-
ly. If any gasoline spills on your
skin or clothing, immediately wash
the affected area with soap and
water and change your clothes.
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Page 59 of 80
PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
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2
3
4
5
6
7
8
9
EAU23290
Checking the wheel bearings
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU23370
Battery
This model is equipped with a
sealed-type (MF) battery, which does
not require any maintenance. There is
no need to check the electrolyte or to
add distilled water.
CAUTION:
ECA10620
Never attempt to remove the battery
cell seals, as this would permanent-
ly damage the battery.
WARNING
EWA10760
Electrolyte is poisonous and
dangerous since it contains sul-furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
1. Battery1
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Page 74 of 80
SPECIFICATIONS
8-1
2
3
4
5
6
7
89
EAU26333
Dimensions:
Overall length:
2135 mm (84.1 in)
Overall width:
820 mm (32.3 in)
Overall height:
1120 mm (44.1 in)
Seat height:
820 mm (32.3 in)
Wheelbase:
1350 mm (53.1 in)
Ground clearance:
255 mm (10.04 in)
Minimum turning radius:
2100 mm (82.7 in)
Weight:
With oil and fuel:
127.0 kg (280 lb)
Engine:
Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
125.0 cm
3
(7.63 cu.in)
Bore
×
stroke:
57.0
×
48.8 mm (2.24
×
1.92 in)
Compression ratio:
10.00 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:
Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element removal:
1.00 L (1.06 US qt) (0.88 Imp.qt)
With oil filter element removal:
1.10 L (1.16 US qt) (0.97 Imp.qt)
Air filter:
Air filter element:
Wet element
Fuel:
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
7.0 L (1.85 US gal) (1.54 Imp.gal)
Fuel reserve amount:
1.7 L (0.45 US gal) (0.37 Imp.gal)
Carburetor:
Manufacturer:
TEIKEI
Type x quantity:
MV28 x 1
Spark plug(s):
Manufacturer/model:
NGK/DR8EA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:
Clutch type:
Wet, multiple-disc
Transmission:
Primary reduction system:
Spur gear
Primary reduction ratio:
74/20 (3.700)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
51/14 (3.643)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
36/16 (2.250)
2nd:
31/21 (1.476)
3rd:
27/24 (1.125)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
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Page 75 of 80
SPECIFICATIONS
8-2
1
2
3
4
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7
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9
4th:
25/27 (0.926)
5th:
23/29 (0.793)
Chassis:
Frame type:
Diamond
Caster angle:
25.8 °
Trail:
93.0 mm (3.66 in)
Front tire:
Type:
With tube
Size:
130/80-18M/C 66P
Manufacturer/model:
BRIDGESTONE/TW-203
Rear tire:
Type:
With tube
Size:
180/80-14M/C 78P
Manufacturer/model:
BRIDGESTONE/TW-204
Loading:
Maximum load:
180 kg (397 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
150 kPa (22 psi) (1.50 kgf/cm
2
)
Rear:
150 kPa (22 psi) (1.50 kgf/cm
2
)
Loading condition:
90–180 kg (198–397 lb)
Front:
150 kPa (22 psi) (1.50 kgf/cm
2
)
Rear:
175 kPa (25 psi) (1.75 kgf/cm
2
)
Front wheel:
Wheel type:
Spoke wheel
Rim size:
18x2.50
Rear wheel:
Wheel type:
Spoke wheel
Rim size:
14M/C x MT4.50
Front brake:
Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Drum brake
Operation:
Right foot operation
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
150.0 mm (5.91 in)
Rear suspension:
Type:
Swingarm (monocross)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
150.0 mm (5.91 in)
Electrical system:
Ignition system:
C.D.I.
Charging system:
A.C. magneto
Battery:
Model:
GT6B-3
Voltage, capacity:
12 V, 6.0 Ah
Headlight:
Bulb type:
Halogen bulb
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