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 ..................... 8-21
Changing the carburetor settings ............. 8-23
Adjusting the engine idling speed ............ 8-31
Adjusting the throttle cable free play ........ 8-33
Brakes ...................................................... 8-33
Checking the front and rear brake
pads ....................................................... 8-34
Checking the brake fluid level .................. 8-35
Changing the brake fluid .......................... 8-37
Checking the front brake lever free
play ........................................................ 8-37
Checking the brake pedal position ........... 8-37
Adjusting the parking brake free play ...... 8-38
Brake light switches ................................. 8-40
Adjusting the clutch lever free play .......... 8-41
Drive chain slack ...................................... 8-41
Lubricating the drive chain ....................... 8-43
Checking and lubricating the cables ........ 8-44
Checking and lubricating the brake and
clutch levers ........................................... 8-44
Checking the shift pedal .......................... 8-45
Checking and lubricating the brake
pedal ...................................................... 8-45
Checking the wheel hub bearings ............ 8-45
Lubricating the rear suspension relay
arm and connecting arm pivoting
points ..................................................... 8-45
Lubricating the upper and lower arm
pivots ..................................................... 8-46
✦✯✬✩✧✤✲✣ ✥
4-7
1
2
34
5
6
7
8
9
10
11
prematurely.
EBU18530
Shift pedal
This ATV is equipped with a constant-mesh 6-
speed transmission. The shift pedal is located on
the left side of the engine and is used in combina-
tion with the clutch when shifting.
EBU18650
Kickstarter
Fold out the kickstarter lever, move it down lightly
with your foot until the gears engage, and thenpush it down smoothly but forcefully. This model is
equipped with a primary kickstarter, allowing the
engine to be started in any gear if the clutch is dis-
engaged. However, shifting the transmission into
the neutral position before starting is recommend-
ed.
EBU18720
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
1. Shift pedal
2. Neutral position
6
5
4
1 2 3
1
2
1. Kickstarter
1
✦✯✬✩✧✤✲✣ ✪
5-1
1
2
3
45
6
7
8
9
10
11
EBU19201
PRE-OPERATION CHECKS
EBU19224
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWB00481
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM ROUTINE PAGE
Fuel
Check fuel level in fuel tank, and add recommended fuel if neces-
sary.
Check fuel line for leakage. Correct if necessary.4-8, 5-3
Transmission oil
Check oil level in transmission case, and add recommended oil to
specified level if necessary.
Check ATV for oil leakage. Correct if necessary.5-3, 8-10
Coolant
Check coolant level in reservoir, and add recommended coolant to
specified level if necessary.
Check cooling system for leakage. Correct if necessary.5-3, 8-13
Front brake
Check operation. If soft or spongy, have Yamaha dealer bleed
hydraulic system.
Check brake pads for wear, and replace if necessary.
Check brake fluid level in reservoir, and add recommended brake
fluid to specified level if necessary.
Check hydraulic system for leakage. Correct if necessary.5-3, 8-34, 8-35, 8-37
✦✯✬✩✧✤✲✣ ✤
5-3
1
2
3
45
6
7
8
9
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 8-37.) 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
✦✯✬✩✧✤✲✣ ✦
6-1
1
2
3
4
56
7
8
9
10
11
EBU19880
OPERATION
EBU19901
Read the Owner’s Manual carefully before riding
the ATV. If there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWB00631
Read the Owner’s Manual carefully to become
familiar with all controls in order to help pre-
vent any loss of control, which could cause an
accident or injury.
EBU29341
Starting a cold engine
NOTICE
ECB00150
See the “Engine break-in” section on page 6-4
prior to operating the engine for the first time.
1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the key to “ON” and the engine stop
switch to “”.
4. Shift the transmission into neutral.5. Use the starter (choke) in reference to the fig-
ure:
Position (1):
Cold engine start with ambient temperature below
5 °C (40 °F).
Position (2):
Cold engine start with ambient temperature be-
tween 0 °C (30 °F) and 30 °C (90 °F).
Position (3):
Cold engine start with ambient temperature above
25 °C (80 °F).
✦✯✬✩✧✤✲✣ ✤
6-2
1
2
3
4
56
7
8
9
10
11
Ambient temp./starter (choke) position
6. Completely close the throttle lever and start
the engine by kicking the kickstarter.
NOTICE:
For maximum engine life, never
accelerate hard when the engine is
cold!
[ECB00162]
7. If the engine is started with the starter (choke)
in position (1), the starter (choke) should be
returned to position (2) to warm up the engine.
If the engine is started with the starter (choke)in position (2), keep the starter (choke) in this
position to warm up the engine.
8. Continue warming up the engine until it idles
smoothly, then return the starter (choke) to
position (3) before riding.TIP
The engine is warm when it responds normally
to the throttle with the starter (choke) turned off.
When the parking brake is applied, engine
speed is limited to 2300 r/min. Make sure the
parking brake is released before moving the
throttle lever; otherwise, the engine will misfire,
preventing normal operation.
EBU20291
Starting a warm engine
Follow the same procedure as for starting a cold
engine, with the exception that the starter (choke)
is not required when the engine is warm. Instead,
start the engine with the throttle slightly open.
EBU20521
Shifting
This ATV has a 6-speed forward transmission. The
transmission allows you to control the amount of
power you have available at a given speed or for
1. Fully open
2. Half open
3. Closed
4. Starter (choke)
0°
30°10°20°30°
50°70°90°°F °C
123
1
234
✦✯✬✩✧✤✲✣ ✥
6-3
1
2
3
4
56
7
8
9
10
11
starting, accelerating, climbing hills, etc.
To shift into neutral, release the throttle lever, ap-
ply the clutch, and then repeatedly depress the
shift pedal until it stops.
When it stops, it will be in first gear. Raise the pedal
slightly to reach the neutral position.
EBU20591
To start out and accelerate
1. Release the throttle lever, and then release
the parking brake.NOTICE
ECB00200
Always close the throttle before shifting gears,
otherwise damage to the engine and drive train
may result.
2. Pull the clutch lever to disengage the clutch.
3. Shift into first gear.
4. Open the throttle gradually and at the same
time, release the clutch lever slowly.
WARNING! Opening the throttle abruptly
or releasing the clutch lever too quickly
could make the ATV wheelie, which would
increase the chance of an accident, includ-
ing an overturn.
[EWB00731]
5. Once the ATV has attained adequate speed,
release the throttle, and at the same time,
quickly pull in the clutch lever.
6. Shift the transmission into second gear.
(Make sure not to shift the transmission into
neutral.)
7. Open the throttle part way and gradually re-
lease the clutch lever.
8. Follow the same procedure when shifting to
the next higher gear.
1. Shift pedal
2. Neutral position
6
5
4
1 2 3
1
2
✦✯✬✩✧✤✲✣ ✦