Page 48 of 88

TIP
Make sure that the vehicle is positio-
ned straight up when checking the oil
level. A slight tilt to the side can result
in a false reading.
3. Remove the oil check bolt, and
then check the oil level.
TIP
The oil should be at the brim of the
check hole.
4. If the oil is below the brim of the
check hole, remove the oil filler
cap, add sufficient oil of the
recommended type to raise it to
the correct level, and then install
the oil filler cap.
5. Install the oil check bolt, and then
tighten it to the specified torque.To change the transmission oil
1. Oil check bolt
2. Transmission oil drain bolt
3. Washer
1. Place an oil pan under the trans-
mission oil case to collect the
used oil.
2. Remove the drain bolt and the oil
check bolt to drain the oil.
3. Install the drain bolt and the
check bolt, and then tighten them
to the specified torques.4. Remove the oil filler cap, refill
with the specified amount of the
recommended transmission oil,
and then install and tighten the oil
filler cap. NOTICE: Make sure
that no foreign material enters
the transmission case.
[ECAM1021]
5. Start the engine and let it idle for
several minutes while checking
the transmission oil case for oil
leakage. If oil is leaking, imme-
diately turn the engine off and
check for the cause.
Recommended transmission oil:
See page 8-1
Oil change quantity:
0.75 L (0.79 US qt, 0.66 Imp.qt)
Tightening torque:
Transmission oil drain bolt:
17.5 Nm (1.7 m•kgf, 12.7 ft•lbf)
Oil check bolt:
6 Nm (0.6 m•kgf, 4.3 ft•lbf)
Tightening torque:
Oil check bolt:
6 Nm (0.6 m•kgf, 4.3 ft•lbf)
PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
5WX-F8199-E3 7/11/08 16:51 Página 48
Page 59 of 88

Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low bra-
ke fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
Observe these precautions:
●When checking the fluid level,
make sure that the top of the bra-
ke fluid reservoir is level.
●Use only the recommended qua-
lity brake fluid, otherwise the rub-
ber seals may deteriorate, cau-
sing leakage and poor braking
performance.
●Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performan-
ce.
●Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
●Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
●As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22731
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenan-
ce and lubrication chart. In addition,
have the oil seals of the master cylin-
ders and calipers as well as the brake
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.
●Oil seals: Replace every two
years.
●Brake hoses: Replace every four
years.
Recommended brake fluid:
DOT 4
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
6
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Page 79 of 88

Dimensions:Overall length:2202 mm (86.7 in)
Overall width: 689 mm (27.1 in)
Overall height: 1175 mm (46.3 in)
Seat height: 820 mm (32.3 in)
Wheelbase: 1341 mm (52.8 in)
Ground clearance: 151 mm (5.94 in)
Minimum turning radius: 2900 mm (114.2 in)
Weight:With oil and fuel:124.0 kg (273 lb)
Engine:Engine type:Liquid cooled 2-stroke
Cylinder arrangement: Forward-inclined single cylinder
Displacement: 49.7 cm
3
Bore x stroke:40.3 x 39.0 mm (1.59 x 1.54 in)
Compression ratio: 11.50 :1
Starting system: Electric starter
Lubrication system: Separate lubrication (Yamaha autolube) Type:
YAMALUBE 2 or 2-stroke engine oil
(JASO FC grade) or (ISO EG-C or EG-D
grade)
Quantity: 1.40 L (1.48 US qt, 1.23 Imp.qt)
Transmission oil:Oil change quantity:0.75 L (0.79 US qt, 0.66 Imp.qt)
Type: SAE 10W-30 type SE motor oil
Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):0.29 L (0.31 US qt, 0.26 Imp.qt)
Radiator capacity (including all routes): 0.70 L (0.74 US qt, 0.62 Imp.qt)
Air filter:Air filter element:Wet element
Fuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 13.8 L (3.65 US gal, 3.04 Imp.gal)
Fuel reserve amount: 2.2 L (0.58 US gal, 0.48 Imp.gal)
Carburetor:Manufacturer:DELL’ORTO
Type x quantity: PHBN 16 x 1
Spark plug (s):Manufacturer/model:NGK / BR9 ES
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
Clutch:Clutch type:Wet, multiple-disc
Transmission:Primary reduction system:Helical gear
Primary reduction ratio: 71/20 (3.55)
Secondary reduction system: Chain drive
Secondary reduction ratio: 60/11 (5.45)
Transmission type: Constant mesh 6-speed
Operation: Left foot operation
Gear ratio:1st:36/12 (3.00)
2nd: 33/16 (2.062)
3rd: 29/19 (1.526)
4th: 27/22 (1.227)
5th: 25/24 (1.041)
6th: 24/25 (0.960)
SPECIFICATIONS
8-1
8
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Page 80 of 88

Chassis:Frame type:
Double cradle
Caster angle:
25.00 º
Trail:
90.0 mm (3.54 in)
Front tire:Type:
Tubeless
Size:
100/80 17 (52H)
Manufacturer/model:
Pirelli / Sport Demon
Manufacturer/model:
Continental/Conti-Twist SM
Rear tire:Type:
Tubeless
Size:
130/70 17 (62H)
Manufacturer/model:
Pirelli / Sport Demon
Manufacturer/model:
Continental/Conti-Twist SM
Loading:Maximum load:
196 kg (432 lb)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
180 kPa (1.80 kgf/cm
2, 26 psi, 1.80 bar)Rear:
200 kPa (2.00 kgf/cm
2, 29 psi, 2.00 bar)
Loading condition:
90–196 kg (198–432 lb)
Front:
190 kPa (1.90 kgf/cm
2, 28 psi, 1.90 bar)
Rear:
230 kPa (2.30 kgf/cm
2, 33 psi, 2.30 bar)
Front wheel:Wheel type:
Cast wheel
Rim size:
17 x MT2.75
Rear wheel:Wheel type:
Cast wheel
Rim size:
17 x MT3.50
Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
108.0 mm (4.25 in)
Rear suspension:Type:
Unit swing
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
89.2 mm (3.51 in)
Electrical system:Ignition system:
DC. CDI
Charging system:
AC magneto
Battery:Model:
GT4L-BS
Voltage, capacity:
12 V, 3.0 Ah
Headlight:Bulb type:
Incandescence
Bulb voltage, wattage x quantity:Headlight:
12 V, 25 W/25 W x 2
Tail/brake light:
12 V, 5.0 W/21.0 W x 1
Front turn signal light:
12 V, 16.0 W x 2
SPECIFICATIONS
8-2
8
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