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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
JUDGEMENT ...........................................7-2
BE CAREFUL WHERE YOU RIDE ............ 7-8
TURNING YOUR ATV ............................. 7-12
CLIMBING UPHILL .................................. 7-14
RIDING DOWNHILL................................. 7-16
CROSSING A SLOPE.............................. 7-17
CROSSING THROUGH SHALLOW
WATER ..................................................7-18
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING ........................ 7-20
WHAT TO DO IF... ................................... 7-21
WHAT TO DO... ....................................... 7-21
PERIODIC MAINTENANCE AND MINOR
REPAIR .......................................................... 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 .......................... 8-8Transmission oil ....................................... 8-10
Coolant .................................................... 8-12
Cleaning the air filter element .................. 8-17
Cleaning the spark arrester ..................... 8-20
Changing the carburetor settings ............. 8-22
Adjusting the engine idling speed ............ 8-29
Adjusting the throttle cable free play ........ 8-31
Checking the front and rear brake
pads .......................................................8-32
Checking the brake fluid level .................. 8-33
Changing the brake fluid .......................... 8-34
Checking the front brake lever free
play ........................................................8-34
Checking the brake pedal position ........... 8-35
Adjusting the parking brake free play ...... 8-36
Brake light switches ................................. 8-38
Adjusting the clutch lever free play .......... 8-38
Drive chain slack ...................................... 8-39
Lubricating the drive chain ....................... 8-41
Checking and lubricating the cables ........ 8-42
Checking and lubricating the brake and
clutch levers ...........................................8-43
Checking and lubricating the brake and
shift pedals .............................................8-43
Checking the wheel hub bearings ............ 8-43
Lubricating the rear suspension relay arm
and connecting arm pivoting points .......8-43
Lubricating the upper and lower arm
pivots .....................................................8-44
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them several times to let friction dry out the lin-
ings. If the ATV is operated through deep or
fast flowing water, the tires may float, causing
loss of traction and loss of control, which
could lead to an accident.
Test your brakes after leaving the water. Do not
continue to ride your ATV without verifying that you
have regained proper braking ability.CAUTION:
ECB00240
After riding your ATV in water, be sure to drain
the trapped water by removing the check hose
at the bottom of the air filter case. Wash the
ATV in fresh water if it has been operated in
salt water or muddy conditions.
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EBU23070
NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.
Replace the brake hoses every four years and if cracked or damaged.
19
*
Throttle lever hous-
ing and cable
Check operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.
√√√√√
20
*
Front and rear brake
switches
Check operation and correct if necessary.
√√√√√
21
*
Lights and switches
Check operation and correct if necessary.
Adjust headlight beams.
√√√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
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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.
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 sufficient
coolant until it reaches the top of the radiator,
and then install the radiator cap.
14. Start the engine, and then check for coolant
leakage.
NOTE:
If any leakage is found, have a Yamaha dealer
check the cooling system.
15. Install the radiator cover by installing the bolts.
EBU23621
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 the air filter element more
frequently if you are riding in unusually wet or dustyareas.
NOTE:
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.
1. Remove the seat. (See page 4-11.)
2. Remove the air filter case cover by unhooking
the holders.
1. Air filter case check hose
1
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3. Pull the air filter element out of the air filter
case.4. Remove the lock plate by turning it, and then
remove the sponge material from the air filter
element frame.
1. Air filter case cover
2. Air filter case cover holder
1 2 2
1. Air filter element lock plate
1
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5. Wash the sponge material gently but thor-
oughly in solvent.
WARNING
EWB01940
Always use parts cleaning solvent to clean the
sponge material. Never use low-flash-point
solvents or gasoline to clean the sponge mate-
rial because the engine could catch fire or ex-
plode.
6. Squeeze the excess solvent out of the sponge
material and let it dry.CAUTION:
ECB00440
Do not twist the sponge material when squeez-
ing it.
7. Check the sponge material and replace it if
damaged.
8. Apply a quality foam air filter oil to the sponge
material.
NOTE:
The sponge material should be wet but not drip-
ping.
9. Pull the sponge material over the air filter ele-
ment frame, and then install the lock plate by
1. Sponge material
2. Air filter element frame
3. Air filter element lock plate
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turning it.
10. Insert the air filter element into the air filter
case, and then install the air filter case cover
by hooking the holders onto the air filter case.
11. Install the seat.
NOTE:
The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubberjoint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of unfiltered
air entering the engine.CAUTION:
ECB00460
Make sure that the air filter element is prop-
erly seated in the air filter case.
Never operate the engine with the air filter el-
ement removed. This will allow unfiltered air
to enter the engine, causing rapid engine
wear and possible engine damage. Addition-
ally, operation without the air filter element
will affect carburetor jetting with subsequent
poor performance and possible engine over-
heating.
EBU28310
Cleaning the spark arrester
Be sure the exhaust pipe and muffler are cool be-
fore cleaning the spark arrester.
1. Remove the screws.
1. Air filter element
1
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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.
6. Remove the fuel tank by removing the bolts.
7. Remove the air filter case cover by unhooking
the holders.
1. Radiator cover
2. Fuel tank
3. Screw
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3
3
1. Fuel tank
2. Bolt
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