2004 YAMAHA BEAR TRACKER 250 oil type

5-13
EBU10842
Engine oil
Make sure the engine oil is at the specified level.
Add oil as necessary. (See pages 8-13–8-19.)CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of “CD”
or oils of a higher quality than specified. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil type and quantity:
See page 10-2.
U4XE65.book Page 13 Tuesday, May 6, 2003 1:38 PM

8-21 1. Final gear oil
2. Correct oil level
3. Final gear oil filler bolt
1. Huile de transmission finale
2. Niveau d’huile correct
3. Boulon de l’orifice de remplissage d’huile de transmission finale
1. Aceite de la transmisión final
2. Nivel de aceite exacto
3. Perno del orificio de llenado de aceite de la transmisión final
EBU11450
Final gear oil
Final gear oil measurement
1. Place the machine on a level surface.
2. Remove the oil filler bolt, and then check the
oil level in the final gear case.NOTE:_ The oil level should be at the brim of the filler hole. _3. If the oil is below the brim of the filler hole,
add sufficient oil of the recommended type to
raise it to the correct level.CAUTION:_ Be sure no foreign material enters the final
gear case. _4. Install the oil filler bolt.
U4XE65.book Page 21 Tuesday, May 6, 2003 1:38 PM

8-47

Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor brake performance.


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 painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.


Have a Yamaha dealer check the cause if the
brake fluid level goes down.
EBU11860
Brake fluid replacement
Complete fluid replacement should be done only
by trained Yamaha service personnel. Have a
Yamaha dealer replace the following components
during periodic maintenance or when they are
damaged or leaking.

Replace the oil seals every two years.


Replace the brake hoses every four years.
U4XE65.book Page 47 Tuesday, May 6, 2003 1:38 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) (For Europe) 75.3 dB (A)
Vibration on seat (EN1032, ISO5008)
(For Europe) Not exceed 0.5 (m/s
2)
Vibration on handlebar (EN1032, ISO5008)
(For Europe) Not exceed 2.5 (m/s2)
Engine:
Type Air-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 229.6 cm
3
Bore
× stroke 71
× 58 mm
Compression ratio 8.7:1
U4XE65.book Page 1 Tuesday, May 6, 2003 1:38 PM

10-2
10
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 higher
Quantity:
Without oil filter element removal 1.5 L
With oil filter element removal 1.6 LModel YFM250X
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
CAUTION:
In order to prevent clutch slippage (since the en-
gine oil also lubricates the clutch), do not mix any
chemical additives. Do not use oils with a diesel
specification of “CD” or oils of a higher quality
than specified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.
U4XE65.book Page 2 Tuesday, May 6, 2003 1:38 PM

10-3
Final gear oil:
Type SAE 80 API “GL-4” Hypoid gear oil
Quantity:
Periodic oil change 0.25 L
Air filter: Dry element
Fuel:
Type Unleaded gasoline only
For Europe: Regular unleaded gasoline only with
a research octane number of 91 or higher
Tank capacity 12 L
Reserve amount 1.6 L
Carburetor:
Ty p e
× quantity BST34
× 1
Manufacturer MIKUNI
Spark plug:
Type / manufacturer DR7EA / NGK
Gap 0.6–0.7 mm
Clutch type: Wet, centrifugal automaticModel YFM250X
U4XE65.book Page 3 Tuesday, May 6, 2003 1:38 PM

10-5
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 mm
Electrical:
Ignition system DC, C.D.I.
Generator system A.C. magneto
Battery type / voltage, capacity YB14A-A2/12 V, 14 Ah
Headlight type: IncandescenceModel YFM250X
U4XE65.book Page 5 Tuesday, May 6, 2003 1:38 PM