oil YAMAHA BEAR TRACKER 250 2002 Owner's Manual

8-35
3. Pull out the air filter element.
4. Separate the foam cover from the air filter el-
ement.
5. Tap the element lightly to remove most of the
dust and dirt. Blow out the remaining dirt with
compressed air. If the element is damaged,
replace it.
6. Wash the foam cover gently but thoroughly in
water or solvent.
WARNING
_ When using solvent to clean the foam cover,
always use parts cleaning solvent. Never use
low flash point solvents or gasoline to clean
the foam cover because the engine could
catch fire or explode. _7. Squeeze the excess solvent out of the filter
and let it dry.CAUTION:_

Do not twist the foam cover when squeez-
ing it.


Do not add oil to the foam cover.
_8. Inspect the foam cover. If damaged, replace
it.
EE.book Page 35 Monday, June 25, 2001 2:27 PM

8-47 1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimo
EBU00755
Brake fluid level inspection
Insufficient brake fluid may let air enter the brake
system, possibly causing the brakes to become in-
effective.
Before riding, check that the brake fluid is above
the lower level and replenish when necessary.
Observe these precautions:
1. When checking the fluid level, make sure the
top of the master cylinder is level by turning
the handlebars.
2. Use only the designated quality brake fluid.
Otherwise, the rubber seals may deteriorate,
causing leakage and poor brake perfor-
mance.
3. Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reac-
tion and lead to poor brake performance.
4. Be careful that water does not enter the mas-
ter cylinder when refilling. Water will signifi-
cantly lower the boiling point of the fluid and
may result in vapor lock. Recommended brake fluid: DOT 4
EE.book Page 47 Monday, June 25, 2001 2:27 PM

8-63
EBU00570
Cable inspection and lubrication
WARNING
_ Inspect cables frequently and replace if dam-
aged. Corrosion can result when the outer cov-
ering of control cables becomes damaged.
Cables can also become frayed or kinked. Op-
eration of controls could be restricted, which
could cause an accident or injury. _Lubricate the inner cables and the cable ends. If
the cables do not operate smoothly, ask a Yamaha
dealer to replace them.
Recommended lubricant:
Engine oil
EE.book Page 63 Monday, June 25, 2001 2:27 PM

8-73
WARNING
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains sul-
furic acid. Avoid contact with skin, eyes or
clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention. Batteries produce
explosive gases. Keep sparks, flame, ciga-
rettes or other sources of ignition away. Venti-
late when charging or using in an enclosed
space. Always shield your eyes when working
near batteries. KEEP OUT OF REACH OF CHIL-
DREN.
EE.book Page 73 Monday, June 25, 2001 2:27 PM

9-7
EBU00427
B. STORAGE
Long term storage (60 days or more) of your ma-
chine will require some preventive procedures to
guard against deterioration. After thoroughly
cleaning the machine, prepare for storage as fol-
lows:
1. Fill the fuel tank with fresh fuel and add fuel
stabilizer (if available).NOTE:Use of fuel stabilizer eliminates the need to drain
the fuel system. Consult a Yamaha dealer if the
fuel system is to be drained instead.2. Remove the spark plug, pour about one ta-
blespoon of SAE 10W30 or 20W40 motor oil
in the spark plug hole and reinstall the spark
plug. Ground the spark plug wire and turn the
engine over several times to coat the cylinder
wall with oil.
3. Lubricate all control cables.
4. Block up the frame to raise all wheels off the
ground.
EE.book Page 7 Monday, June 25, 2001 2:27 PM

9-9
5. Tie a plastic bag over the exhaust pipe outlet
to prevent moisture from entering.
6. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber parts
or the seat cover.
7. Remove the battery and charge it. Store it in
a dry place and recharge it once a month. Do
not store the battery in an excessively warm
or cold place (less than 0°C or more than
30°C).NOTE:Make any necessary repairs before storing the
machine.
EE.book Page 9 Monday, June 25, 2001 2:27 PM

10-1
EBU00428
SPECIFICATIONS
Model YFM250X
Dimension:
Overall length 1,940 mm
Overall width 1,080 mm
Overall height 1,118 mm
Seat height 780 mm
Wheelbase 1,170 mm
Minimum ground clearance 150 mm
Minimum turning radius 2,900 mm
Basic weight:
With oil and full fuel tank 213 kg
Noise and vibration level:
Noise level (71/311/EEC) 75.3 dB (A)
Vibration on seat (EN1032, ISO5008) Not exceed 0.5 (m/s
2)
Vibration on handlebar (EN1032, ISO5008) Not exceed 2.5 (m/s2)
EE.book Page 1 Monday, June 25, 2001 2:27 PM

10-2
10
Engine:
Type Air-cooled 4-stroke, SOHC
Cylinder arrangement Single cylinder, forward-inclined
Displacement 229.6 cm


Bore
× stroke 71
× 58 mm
Compression ratio 8.7:1
Starting system Electric starter and recoil starter
Lubrication system Wet sump
Engine oil:
Type
Recommended engine oil classification API Service SE, SF, SG type or higherModel YFM250X
-20˚-10˚0˚
10˚20˚30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
EE.book Page 2 Monday, June 25, 2001 2:27 PM

10-3
Quantity:
Periodic oil change (engine oil)
Periodic oil change
(engine oil with oil filter replacement)
Total amount1.5 L
1.6 L
1.8 L
Final gear oil:
Type SAE80API “GL-4” Hypoid Gear Oil
Quantity
Total amount 0.27 L
Air filter: Dry type element
Fuel:
Type For Europe: Regular unleaded gasoline
For Australia: Unleaded gasoline only
Tank capacity 12 L
Reserve amount 1.6 LModel YFM250X
CAUTION:Be sure to use motor oils that do not contain anti-
friction modifiers. Passenger car motor oils (often
labeled “Energy Conserving II”) contain anti-fric-
tion additives which will cause clutch and/or
starter clutch slippage, resulting in reduced com-
ponent life and poor engine performance.
EE.book Page 3 Monday, June 25, 2001 2:27 PM

10-5
Chassis:
Frame type Steel tube
Caster angle 4°
Trail 20 mm
Tire:
Ty p e T u b e l e s s
Size: Front AT22
× 7-10
Size: Rear AT22 × 10-10
Brake:
Front brake type Dual disk
operation Right hand operation
Rear brake type Drum brake
operation Left hand and right foot operation
Suspension:
Fr on t S tr ut
Rear Swingarm (monocross)
Shock absorber:
Front Coil spring / Oil damper
Rear Coil spring / Oil damper
Wheel travel:
Front 125 mm
Rear 135 mmModel YFM250X
EE.book Page 5 Monday, June 25, 2001 2:27 PM