Page 20 of 78

INSTRUMENT AND CONTROL FUNCTIONS
3-7
2
34
5
6
7
8
9 fuel may deteriorate painted surfac-
es or plastic parts.
EAU13320
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-leaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13580
Fuel cock
This model is equipped with a negative
pressure fuel cock. The fuel cock sup-
plies fuel from the tank to the carburetor
while also filtering it.
The fuel cock lever positions are ex-
plained as follows and shown in the il-
lustrations.
ON
With the fuel cock lever in this position,
fuel flows to the carburetor when the
engine is running. Turn the fuel cock le-
ver to this position when starting the en-
gine and riding. Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
11.0 L (2.91 US gal)
(2.42 Imp.gal)
Fuel reserve amount:
3.4 L (0.90 US gal)
(0.75 Imp.gal)
1. Arrow mark positioned over “ON”
1
Page 46 of 78

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
2
3
4
5
67
8
9
WARNING
EWA10570
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the mo-
torcycle with excessively worn
tires decreases riding stability
and can lead to loss of control.
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-edge and experience.
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a
high-quality product.
EAU21940
Spoke wheels
To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified wheels.
The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
Front tire:
Size:
80/100-18M/C 47P
Manufacturer/model:
CHENG SHIN/C-916
IRC/MARBELLA NF27
Rear tire:
Size:
130/90-15M/C 66P
Manufacturer/model:
CHENG SHIN/C-915
IRC/MARBELLA NR31
Page 60 of 78
PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
2
3
4
5
67
8
9 age rating than recommended 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.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU23791
Replacing the headlight bulb
This model is equipped with a quartz
bulb headlight. If the headlight bulb
burns out, replace it as follows.
1. Remove the headlight unit by re-
moving the screws.
2. Disconnect the headlight coupler,
and then remove the bulb cover.
3. Unhook the headlight bulb holder,
and then remove the defective
bulb.
1. Headlight unit
2. Screw
1
2(×2)
1. Headlight coupler
1. Bulb cover
1
1
Page 73 of 78

8-1
1
2
3
4
5
6
7
8
9
SPECIFICATIONS
EAU26333
Dimensions:
Overall length:
2320 mm (91.3 in)
Overall width:
910 mm (35.8 in)
Overall height:
1075 mm (42.3 in)
Seat height:
670 mm (26.4 in)
Wheelbase:
1530 mm (60.2 in)
Ground clearance:
150 mm (5.91 in)
Minimum turning radius:
2900 mm (114.2 in)
Weight:
With oil and fuel:
156.0 kg (344 lb)
Engine:
Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
124.0 cm
3
(7.57 cu.in)
Bore
×
stroke:
41.0
×
47.0 mm (1.61
×
1.85 in)
Compression ratio:
11.00 :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 replacement:
1.40 L (1.48 US qt) (1.23 Imp.qt)
With oil filter element replacement:
1.60 L (1.69 US qt) (1.41 Imp.qt)
Air filter:
Air filter element:
Dry element
Fuel:
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
11.0 L (2.91 US gal) (2.42 Imp.gal)
Fuel reserve amount:
3.4 L (0.90 US gal) (0.75 Imp.gal)
Carburetor:
Manufacturer:
MIKUNI
Type x quantity:
BDS26 x 1
Spark plug(s):
Manufacturer/model:
NGK/CR7HSA
Manufacturer/model:
DENSO/U22FSR-U
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:
85/25 (3.400)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
59/16 (3.688)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
37/14 (2.643)
2nd:
32/19 (1.684)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
Page 74 of 78

SPECIFICATIONS
8-2
2
3
4
5
6
7
89
3rd:
29/23 (1.261)
4th:
26/26 (1.000)
5th:
23/27 (0.852)
Chassis:
Frame type:
Double cradle
Caster angle:
35.0 °
Trail:
135.0 mm (5.31 in)
Front tire:
Type:
With tube
Size:
80/100-18M/C 47P
Manufacturer/model:
CHENG SHIN/C-916
Manufacturer/model:
IRC/MARBELLA NF27
Rear tire:
Type:
With tube
Size:
130/90-15M/C 66P
Manufacturer/model:
CHENG SHIN/C-915
Manufacturer/model:
IRC/MARBELLA NR31
Loading:
Maximum load:
183.0 kg (404 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0.0–90.0 kg (0–198 lb)
Front:
175 kPa (25 psi) (1.75 kgf/cm
2
)
Rear:
200 kPa (29 psi) (2.00 kgf/cm
2
)
Loading condition:
90.0–183.0 kg (198–404 lb)
Front:
175 kPa (25 psi) (1.75 kgf/cm
2
)
Rear:
200 kPa (29 psi) (2.00 kgf/cm
2
)
Front wheel:
Wheel type:
Spoke wheel
Rim size:
18x1.60
Rear wheel:
Wheel type:
Spoke wheel
Rim size:
15M/C x MT3.00
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:
140.0 mm (5.51 in)
Rear suspension:
Type:
Swingarm
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
100.0 mm (3.94 in)
Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
A.C. magneto
Page 76 of 78
CONSUMER INFORMATION
9-1 2
3
4
5
6
7
8
9
EAU26351 Identification numbers
Record the key identification number,
vehicle identification number and mod-
el label information in the spaces pro-
vided below for assistance when
ordering spare parts from a Yamaha
dealer or for reference in case the vehi-
cle is stolen.
KEY IDENTIFICATION NUMBER:
VEHICLE IDENTIFICATION NUM-
BER:
MODEL LABEL INFORMATION:
EAU26380 Key identification number
The key identification number is
stamped into the key tag. Record this
number in the space provided and use
it for reference when ordering a new
key.
EAU26400 Vehicle identification number
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.
NO TE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your motorcy-
cle with the licensing authority in your
area. 1. K ey identification n umber
1
1. V ehicle identification n umber
1
Page 77 of 78
CONSUMER INFORMATION
9-2
1
2
3
4
5
6
7
8
9
EAU26460
Model label
The model label is affixed to the loca-
tion shown. Record the information on
this label in the space provided. This in-
formation will be needed when ordering
spare parts from a Yamaha dealer.
1. Model label
1