2011 YAMAHA BANSHEE 350 engine coolant

EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 1-1
SAFETY INFORMATION .............................. 2-1
DESCRIPTION .............................................. 3-1
Left view ..................................................... 3-1
Right view................................................... 3-1
Controls and instruments ........................... 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1
Main switch ............................................... 4-1
Handlebar switches ................................... 4-2
Throttle lever ............................................. 4-2
Throttle OverRide System ......................... 4-3
Speed limiter ............................................. 4-3
Clutch lever ............................................... 4-4
Brake lever ................................................ 4-4
Brake pedal ............................................... 4-5
Parking brake ............................................ 4-5
Shift pedal ................................................. 4-7
Kickstarter ................................................. 4-7
Fuel tank cap ............................................. 4-7
Fuel ........................................................... 4-8Fuel cock ................................................... 4-9
Starter (choke) ......................................... 4-11
Seat ......................................................... 4-11
Adjusting the front shock absorber
assemblies ............................................. 4-12
Adjusting the rear shock absorber
assembly ................................................ 4-13
PRE-OPERATION CHECKS ..........................5-1
Fuel and 2-stroke engine oil mixing ratio ... 5-3
Transmission oil ......................................... 5-3
Coolant ...................................................... 5-3
Front and rear brakes ................................ 5-3
Throttle lever .............................................. 5-4
Drive chain ................................................. 5-4
Tires ........................................................... 5-4
Chassis fasteners ...................................... 5-6
Instruments, lights and switches ................ 5-7
OPERATION...................................................6-1
Starting a cold engine ................................ 6-1
Starting a warm engine .............................. 6-2
Shifting ....................................................... 6-2
Engine break-in .......................................... 6-4
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-6

Accessories and loading ........................... 6-6
RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV.............. 7-2
RIDE WITH CARE AND GOOD
JUDGMENT .............................................7-2
BE CAREFUL WHERE YOU RIDE ............ 7-8
TURNING YOUR ATV ............................. 7-11
CLIMBING UPHILL .................................. 7-12
RIDING DOWNHILL................................. 7-15
CROSSING A SLOPE.............................. 7-16
CROSSING THROUGH SHALLOW
WATER .................................................. 7-17
RIDING OVER ROUGH TERRAIN .......... 7-18
SLIDING AND SKIDDING ........................ 7-19
WHAT TO DO IF... ................................... 7-20
WHAT TO DO... ....................................... 7-20
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ...................... 8-1
Periodic maintenance chart for the
emission control system .......................... 8-3
General maintenance and lubrication
chart ........................................................ 8-5
Checking the spark plugs .......................... 8-9
Transmission oil ...................................... 8-10
Coolant .................................................... 8-13
Cleaning the air filter element ................. 8-18Cleaning the spark arrester ..................... 8-22
Changing the carburetor settings ............. 8-23
Adjusting the engine idling speed ............ 8-32
Adjusting the throttle lever free play ........ 8-34
Brakes ...................................................... 8-34
Checking the front and rear brake
pads ....................................................... 8-35
Checking the brake fluid level .................. 8-36
Changing the brake fluid .......................... 8-37
Checking the front brake lever free
play ........................................................ 8-38
Checking the brake pedal height ............. 8-38
Adjusting the parking brake free play ...... 8-38
Brake light switches ................................. 8-41
Adjusting the clutch lever free play .......... 8-41
Drive chain slack ...................................... 8-43
Lubricating the drive chain ....................... 8-45
Checking and lubricating the cables ........ 8-45
Checking and lubricating the brake and
clutch levers ........................................... 8-46
Checking the shift pedal .......................... 8-46
Checking and lubricating the brake
pedal ...................................................... 8-46
Checking the wheel hub bearings ............ 8-47
Lubricating the rear suspension relay
arm and connecting arm pivoting
points ..................................................... 8-47
Lubricating the upper and lower arm
pivots ..................................................... 8-48

5-3
1
2
3
45
6
7
8
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10
11

EBU19550
Fuel and 2-stroke engine oil mixing
ratio
If Yamalube “R” oil is not available, select an oil
from the following list.
NOTICE

ECB00140
Never mix two types of 2-stroke engine oil in
the same batch. Always use the same type of
oil to ensure maximum engine performance.
EBU19580
Transmission oil
Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-10.)
EBU19631
Coolant
Make sure that the coolant is at the specified level.
Add coolant as necessary. (See page 8-13.)
TIP

The coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture.
EBU19711
Front and rear brakes
Brake lever and brake pedal

Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
check the brake system.

Check for correct brake pedal height. (See
page 8-38.) If the pedal height is incorrect, have
a Yamaha dealer adjust it.

Check the operation of the lever and pedal. They
should move smoothly and there should be a
firm feeling when the brakes are applied. If not,
have a Yamaha dealer check the brake system.
Brake fluid level
Check the brake fluid level. Add fluid if necessary. Recommended 2-stroke engine oil:
Yamalube “R” (Yamalube Racing 2-cycle oil)
Mixing ratio:
24:1
Recommended 2-stroke engine oil Mixing ratio

Castrol R30
20:1 Castrol A545
Castrol A747

8-13
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11

crankcase.
7. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
8. Turn the engine off, and then check the oil lev-
el and correct it if necessary.
EBU23470
Coolant
The coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.
EBU23502
To check the coolant level
1. Place the ATV on a level surface.
TIP

The coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture.
2. Check the coolant level in the coolant reser-
voir.
TIP

The coolant should be between the minimum and
maximum level marks.
3. If the coolant is at or below the minimum level
mark, remove the seat. (See page 4-11.)
4. Open the coolant reservoir cover.
1. Maximum level mark
2. Minimum level mark
1
2

8-14
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11

5. Remove the coolant reservoir cap, add cool-
ant or distilled water to the maximum level
mark, and then install the reservoir cap.
NOTICE:
If coolant is not available, use
distilled water or soft tap water instead. Do
not use hard water or salt water since they
are harmful to the engine. If water has
been used instead of coolant, replace it
with coolant as soon as possible, other-
wise the cooling system will not be pro-
tected against frost and corrosion. If water
has been added to the coolant, have aYamaha dealer check the antifreeze con-
tent of the coolant as soon as possible,
otherwise the effectiveness of the coolant
will be reduced.
[ECB01011]

6. Close the coolant reservoir cover.
7. Install the seat.
TIP

If the engine overheats, see page 8-56 for further
instructions.
EBU23525
To change the coolantWARNING
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 cap
when opening. Allow any remaining pressure
to escape before completely removing the cap.
1. Place the ATV on a level surface.
1. Coolant reservoir cover
2. Coolant reservoir cap
1
2

Coolant reservoir capacity (up to the maximum
level mark):
0.28 L (0.30 US qt, 0.25 Imp.qt)

8-15
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2. Remove the radiator cover by removing the
screws.
3. Place a container under the engine, and then
remove the coolant drain bolts and their gas-
ket.
1. Radiator cover
2. Screw
12
2

1. Coolant drain bolt
2. Gasket
12
1

8-18
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2
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voir to the maximum level mark, and then in-
stall the reservoir cap.
NOTICE:
Mix
antifreeze with distilled water only. Howev-
er, if distilled water is not available, soft
water may be used for refilling. Do not use
hard water or salt water since they are
harmful to the engine.
[ECB00991]

11. Pour the recommended coolant into the radia-
tor until it is full.
12. Install the radiator cap, start the engine, let it
idle for several minutes, and then turn it off.
13. Remove the radiator cap to check the coolant
level in the radiator. If it is low, add sufficientcoolant until it reaches the top of the radiator,
and then install the radiator cap.
14. Start the engine, and then check for coolant
leakage.
TIP

If any leakage is found, have a Yamaha dealer
check the cooling system.
15. Install the radiator cover by installing the
screws.
EBU23624
Cleaning the air filter element
The air filter element should be cleaned at the in-
tervals specified in the periodic maintenance and
lubrication chart. Clean or, if necessary, replace
the air filter element more frequently if you are
riding in unusually wet or dusty areas.
TIP

There is a check hose at the bottom of the air filter
case. If dust or water collects in this hose, empty
the hose and clean the air filter element and air fil-
ter case. Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol antifreeze con-
taining corrosion inhibitors for aluminum en-
gines
Coolant quantity:
Radiator capacity (including all routes):
1.50 L (1.59 US qt, 1.32 Imp.qt)
Coolant reservoir capacity (up to the maxi-
mum level mark):
0.28 L (0.30 US qt, 0.25 Imp.qt)

8-57
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Engine overheating
WARNING

EWB02290
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 put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap.
TIP

If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the rec-
ommended coolant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.