Page 14 of 78
SAFETY INFORMATION
1-3
1Gasoline 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
pipe(s)/muffler(s) when refuel-
ing.
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 motor-
cycle, note the following:
The engine and exhaust pipe(s)/
muffler(s) may be hot, therefore,
park the motorcycle in a placewhere pedestrians or children
are not likely 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 your
eyes, see your doctor immediately.
If any gasoline spills on your skin
or clothing, immediately wash the
affected area with soap and water
and change your clothes.
U1P681E0.book Page 3 Tuesday, April 18, 2006 2:38 PM
Page 34 of 78
OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU41680
WARNING
EWA14620
This model is designed for off-
road use only. Become thor-
oughly familiar with all operat-
ing controls and their functions
before riding. Consult a Yamaha
dealer regarding any control or
function that you do not thor-
oughly understand.
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible lossof control.
EAU40090
Starting and warming up a
cold engine 1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
3. Shift the transmission into the neu-
tral position.
WARNING
EWA14410
Be sure to shift the transmis-
sion into neutral before starting
the engine.
Never ride with the sidestanddown.
4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-6.)
5. Start the engine by pushing the
start switch.
6. After starting the engine, move the
starter (choke) back halfway.
CAUTION:
ECA11130
For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when theengine is cold!
7. When the engine is warm, turn the
starter (choke) off.NOTE:The engine is warm when it responds
normally to the throttle with the starter(choke) turned off.
U1P681E0.book Page 1 Tuesday, April 18, 2006 2:38 PM
Page 72 of 78
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1305 mm (51.4 in)
Overall width:
595 mm (23.4 in)
Overall height:
775 mm (30.5 in)
Seat height:
555 mm (21.9 in)
Wheelbase:
925 mm (36.4 in)
Ground clearance:
135 mm (5.31 in)
Minimum turning radius:
1400 mm (55.1 in)Weight:With oil and fuel:
57.0 kg (126 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
49.0 cm³ (2.99 cu.in)
Bore × stroke:
36.0 × 48.6 mm (1.42 × 1.91 in)
Compression ratio:
9.50 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
(AUS)(AUT)(BEL)(CHE)(DEU)(DNK)(ESP
)(FIN)(FRA)(GBR)(GRC)(IRL)(NLD)(NOR)
(NZL)(PRT)(SWE)(ZAF)
YAMALUBE 4, SAE10W30 or SAE20W40
(CAN)
Recommended engine oil grade:
API service SE, SF, SG type or higherEngine oil quantity:
Periodic oil change:
0.80 L (0.85 US qt) (0.70 Imp.qt)
Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only
(AUT)(BEL)(CAN)(CHE)(DEU)(DNK)(ESP
)(FIN)(FRA)(GBR)(GRC)(IRL)(NLD)(NOR)
(PRT)(SWE)(ZAF)
Unleaded gasoline only (AUS)(NZL)
Fuel tank capacity:
3.1 L (0.82 US gal) (0.68 Imp.gal)
Fuel reserve amount:
0.4 L (0.11 US gal) (0.09 Imp.gal)Carburetor:Manufacturer:
MIKUNI
Type × quantity:
VM11 x 1Spark plug (s):Manufacturer/model:
NGK/CR7HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction system:
Spur gear
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
10° 30° 50° 70° 90°
110°
0°
130°F
YAMALUBE 4 (10W30)
or SAE 10W30
YAMALUBE 4 (20W40)
or SAE 20W40
–10° 0° 10° 20° 30°
40° –20°
50°C
U1P681E0.book Page 1 Tuesday, April 18, 2006 2:38 PM