2009 YAMAHA BANSHEE 350 drain bolt

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To change the transmission oil
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Place an oil pan under the transmission to col-
lect the used oil.
4. Remove the oil filler cap and the drain bolt to
drain the oil from the transmission case.
5. Install the drain bolt, and then tighten it to the
specified torque.6. Refill with the specified amount of the recom-
mended transmission oil, and then install and
tighten the oil filler cap.NOTICE

ECB00430

In order to prevent clutch slippage (since the
transmission 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 ad-
dition, do not use oils labeled “ENERGY
CONSERVING II” or higher.

Make sure that no foreign material enters the
crankcase.
1. Transmission oil drain bolt
1

Tightening torque:
Transmission oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommended transmission oil:
See page 10-1.
Oil quantity:
1.5 L (1.59 US qt, 1.32 Imp.qt)

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ter or salt water since it is harmful to the en-
gine.

If water has been used instead of coolant, re-
place it with coolant as soon as possible,
otherwise the cooling system will not be pro-
tected against frost and corrosion.

If water has been added to the coolant, have
a Yamaha dealer check the antifreeze con-
tent of the coolant as soon as possible, oth-
erwise the effectiveness of the coolant will
be reduced.
6. Close the coolant reservoir cover.
7. Install the seat.
TIP

If the engine overheats, see page 8-52 for further
instructions.
EBU23521
To change the coolant
WARNING

EWB01890
Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always place a thick rag over the capwhen opening. Allow any remaining pressure
to escape before completely removing the cap.
1. Place the ATV on a level surface.
2. Remove the radiator cover by removing the
bolts.
3. Place a container under the engine and re-
move the coolant drain bolts.
1. Radiator cover
2. Radiator cover bolt
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2

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4. Remove the radiator cap. 5. Remove the coolant reservoir cap.
1. Coolant drain bolt
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1. Radiator cap1

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6. Disconnect the hose on the coolant reservoir
side and drain the coolant from the coolant
reservoir.7. After draining the coolant, thoroughly flush the
cooling system with clean tap water.
8. Replace the coolant drain bolt washers if they
are damaged, and then tighten the coolant
drain bolts to the specified torque.
9. Connect the coolant reservoir hose.
10. Pour the recommended coolant into the reser-
1. Coolant reservoir cap
1

1. Coolant reservoir hose
2. Coolant reservoir
Tightening torque:
Coolant drain bolt:
14 Nm (1.4 m·kgf, 10 ft·lbf)
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Carburetor setting chart
Changing the settings of the carburetors
To change the settings of the carburetors, you
need to disassemble and remove them. Follow the
procedures for both carburetors.
Disassembling and removing the carburetors
1. Turn the fuel cock to the “OFF” position.
2. Turn out the carburetor drain screw to drain
the fuel.
3. Remove the seat.
4. Remove the radiator cover and side cover by
removing the screws.
5. Disconnect the fuel hoses.

TemperatureAltitude
0
–1500 m (5000 ft) Above 1500 m (5000 ft)
Main jet Jet needle Pilot air screw Main jet Jet needle Pilot air screw

Above 0°C (32°F) #200 3rd groove 2.0 turns out #190 3rd groove 2 1/2 turns out
from +5 °C (41 °F) to
–15 °C (5 °F)#220 3rd groove 1 1/2 turns out #200 3rd groove 2.0 turns out
from –10 °C (14 °F) to
–30 °C (–22 °F)#240 4th groove 1 1/2 turns out #220 3rd groove 1 1/2 turns out
1. Radiator cover
2. Side cover
3. Radiator cover bolt
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increasing the chance of an accident. Test the
brakes after washing. Apply the brakes several
times at slow speeds to let friction dry out the
linings.
EBU25951
Storage
Short-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover.
NOTICE

ECB00720

Storing the ATV in a poorly ventilated room
or covering it with a tarp while it is still wet,
will allow water and humidity to seep in and
cause rust.

To prevent corrosion, avoid damp cellars,
stables (because of the presence of ammo-
nia) and areas where strong chemicals are
stored.
Long-term
Before storing your ATV for several months:
1. Follow all the instructions in the “Cleaning”section of this chapter.
2. Turn the fuel cock lever to “OFF”.
3. Drain the carburetor float chamber by loosen-
ing the drain bolt; this will prevent fuel deposits
from building up. Pour the drained fuel into the
fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
ing.
5. Perform the following steps to protect the cyl-
inders, piston rings, etc. from corrosion.
a. Remove the spark plug caps and spark
plugs.
b. Pour a teaspoonful of engine oil into each
spark plug bore.
c. Install the spark plug caps onto the spark
plugs, and then place the spark plugs on
the cylinder head so that the electrodes
are grounded. (This will limit sparking dur-
ing the next step.)
d. Turn the engine over several times with
the starter. (This will coat the cylinder walls Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1 oz
of stabilizer to each gallon of fuel)