2005 YAMAHA BRUIN 350 2WD oil type

5-13
EBU10842
Engine oil
Make sure the engine oil is at the specified level.
Add oil as necessary. (See pages 8-21–8-31.)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 spec-
ified. 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.
EE.book Page 13 Wednesday, April 21, 2004 8:59 AM

8-23 1. Engine oil drain bolt
1. Boulon de vidange de l’huile
1. Perno de drenaje del aceite de motor
6. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct level.
7. Insert the dipstick into the oil filler hole, and
then tighten the oil filler cap.
To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Start the engine, warm it up for several min-
utes, and then turn it off.
2. Place an oil pan under the engine to collect
the used oil, and then remove the engine oil
filler cap.
3. Remove the engine oil drain bolt to drain the
oil from the crankcase.
EE.book Page 23 Wednesday, April 21, 2004 8:59 AM

8-31
‘1. Final gear oil
2. Final gear oil filler bolt
3. Proper oil level
1. Huile de transmission finale
2. Boulon de remplissage d’huile du carter de transmission finale
3. Niveau correct
1. Aceite de la transmisión final
2. Perno del orificio de llenado de aceite de la transmisión final
3. Nivel de aceite adecuado
9. Start the engine and warm it up for several
minutes. While warming up, check for oil
leakage. If oil leakage is found, turn the en-
gine off immediately and check for the cause.
10. Turn the engine off, and then check the oil
level and correct it if necessary.
EBU11453
Final gear oil
Checking the final gear oil
1. Place the ATV 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. _
EE.book Page 31 Wednesday, April 21, 2004 8:59 AM

8-67

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.
EE.book Page 67 Wednesday, April 21, 2004 8:59 AM

10-1
EBU00428
SPECIFICATIONS
Model YFM350BA
Dimensions:
Overall length 1,984 mm
Overall width 1,085 mm
Overall height 1,120 mm
Seat height 827 mm
Wheelbase 1,233 mm
Ground clearance 245 mm
Minimum turning radius 3,000 mm
Basic weight:
With oil and full fuel tank 245 kg (for Europe)
249 kg (for Oceania)
Noise and vibration level:
Noise level (77/311/EEC) (for Europe) 77.6 dB(A)
Vibration on seat (EN1032, ISO5008) (for Europe) Will not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008)
(for Europe)Will not exceed 2.5 m/s
2
Engine:
Engine type Air cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 348.9 cm
3
Bore
× stroke 83.0
× 64.5 mm
Compression ratio 9.20 :1
EE.book Page 1 Wednesday, April 21, 2004 8:59 AM

10-2
10
Starting system Electric 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 cartridge replacement
With oil filter cartridge replacement2.2 L
2.3 L Model YFM350BA
-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.
EE.book Page 2 Wednesday, April 21, 2004 8:59 AM

10-3
Final gear oil:
Type SAE 80 API GL-4 Hypoid gear oil
Quantity 0.23 L
Air filter: Wet element
Fuel:
Type Unleaded gasoline only
For Europe: Regular unleaded gasoline only with a
research octane number of 91 or higher
Fuel tank capacity 13.5 L
Fuel reserve amount 3.3 L
Carburetor:
Type/quantity BSR33/1
Manufacturer MIKUNI
Spark plug:
Type/manufacturer DR8EA / NGK
Spark plug gap 0.6–0.7 mm
Clutch type: Wet, centrifugal automaticModel YFM350BA
EE.book Page 3 Wednesday, April 21, 2004 8:59 AM

10-5
Suspension:
Front suspension Double wishbone
Rear suspension Swingarm (monocross)
Shock absorber:
Front shock absorber Coil spring / oil damper
Rear shock absorber Coil spring / oil damper
Wheel travel:
Front wheel travel 160 mm
Rear wheel travel 180 mm
Electrical:
Ignition system DC-C.D.I.
Generator system A.C. magneto
Battery type YTX14AH
Battery voltage, capacity 12 V, 12 Ah
Headlight type: Krypton bulbModel YFM350BA
EE.book Page 5 Wednesday, April 21, 2004 8:59 AM