2004 YAMAHA BANSHEE 350 fuel

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8Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.
8Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up any
spilled fuel immediately.
8Do not refuel right after the engine has
been running and is still very hot.
8Be sure the fuel tank cap is closed secure-
ly.

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EBU00512
Starting a cold engine
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Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or
do not work smoothly, you could be unable
to control the ATV, which could lead to an
accident or collision.
1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “RUN”.
4. Shift the transmission into neutral.
5. Use the starter (choke) in reference to the
figure:

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EBU00212
Parking
When parking, stop the engine and shift into low
gear. Turn the fuel cock to “OFF” and apply the
parking brake.
1
1. Locked position
1. Verrouillé
1. Posición bloqueada

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PERIODIC MAINTENANCE/LUBRICATION
INITIAL EVERY
ITEM ROUTINE 1 3 6 6 1
month months months months year
Transmission9Replace oil.2222
9Check coolant leakage.
Cooling system9Repair if necessary.22222
9Replace coolant every 24 months.
9Check condition.
Spark plug9Adjust gap and clean.22222
9Replace if necessary.
Air filter element9Clean. Every 20–40 hours.
9Replace if necessary. (More often in wet or dusty areas)
* Carburetor9Check idle speed / starter operation.
2222
9Adjust if necessary.
* Crankcase breather9Check breather hose for cracks or damage.
222
system9Replace if necessary.
9Check for leakage.
* Exhaust system9Retighten if necessary.222
9Replace gasket(s) if necessary.
* Fuel line9Check fuel hose for cracks or damage.
222
9Replace if necessary.
Throttle operation9Inspect and adjust free play if necessary.22222
* Front and rear9Check operation/fluid leakage/see NOTE Page 8-9.
22222
brake operation9Correct if necessary.
* Front and rear9Check pad wear.
222
brake pads9Replace if necessary.

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Carburetor settings
In extremely cold weather, it is necessary to
change the carburetor settings to maintain opti-
mum engine performance and to prevent engine
damage.
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8Improperly servicing or adjusting the carbu-
retors could cause malfunction with the pos-
sibility of an accident or the carburetors
could leak fuel, which would be a fire hazard.
8Carburetor adjustments should only be per-
formed by a Yamaha dealer. Do not attempt
to perform these procedures unless you
have mechanical knowledge and the neces-
sary tools.
8Do not perform this procedure while the
engine is hot. Place a rag under each carbu-
retor to catch any fuel. Wipe up any spilled
fuel completely.
8After servicing the carburetors, always check
throttle operation before operating the ATV
to make sure it is working correctly.

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Changing the carburetor settings
Disassembly
1. Turn the fuel cock to the “OFF” position.
2. Turn out the drain screw of each carbure-
tor and drain the fuel.
3. Remove the seat.
4. Remove the radiator cover and side cover.
5. Disconnect the fuel hoses.
6. Remove the fuel tank.1
2
1. Radiator cover
2. Side cover
1. Cache du radiateur
2. Cache latéral
1. Cubierta del radiador
2. Cubierta lateral

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7. Tighten the joint screws of each carbure-
tor.
Throttle cable adjustment
After the jet needle clip positions are changed,
throttle cable adjustment may be necessary.
1. Move the throttle lever a few times.
2. Push the throttle lever forward until it stops
and hold it in this position.
3. Check through the window of each carbu-
retor to see if the punch mark on the throt-
tle valve is at the specified position.
4. If not, loosen the locknuts and turn the
adjusters until proper position is obtained.
5. Move the throttle lever a few times and
recheck the position.
6. Install the fuel tank, side cover, radiator
cover and air filter case cover.
7. Reconnect the fuel hoses.
8. Install the seat.
a
wq
a. Specified position : 0–1mm
a. Position spésifiée : 0 à 1mm
a. Posición especificada : 0–1mm
1. Locknut (×2) 2. Adjuster (×2)
1. Contre-écrou (×2) 2. Dispositif de réglage (×2)
1. Tuerca de bloqueo (×2) 2. Tensor (×2)

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Troubleshooting
Although Yamaha machines receive a rigid
inspection before shipment from the factory,
trouble may occur during operation.
Any problem in the fuel, compression, or ignition
systems can cause poor starting and loss of
power. The troubleshooting chart describes a
quick, easy procedure for making checks. If your
machine requires any repair, take it to a Yama-
ha dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only gen-
uine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a shorter
service life and can lead to expensive repair
bills.