Page 8 of 146

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
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3-1
1
23
4
5
6
7
8
9
10
11
EBU17680
DESCRIPTION
EBU17690
Left view
EBU17700
Right view
1. Front shock absorber assembly
2. Radiator
3. Fuel cock
4. Rear shock absorber assembly
5. Spark arrester
6. Starter (choke)
7. Shift pedal
12
34
5
7
6
1. Tail/brake light
2. Seat
3. Kickstarter
4. Fuel tank cap
5. Headlight
6. Brake pedal
7. Brake light switch
12
3
45
6
7
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Page 37 of 146
4-12
1
2
34
5
6
7
8
9
10
11
To install the seat
Insert the projection on the front of the seat into the
seat holder and push down on the seat at the rear.
Make sure that the seat is securely fitted.
EBU18992
Adjusting the front shock absorber
assemblies
The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
WARNING
EWB00400
Always adjust the shock absorber assemblies
on the left and right side to the same setting.
Uneven adjustment can cause poor handling
and loss of stability, which could lead to an ac-
1. Seat lock lever
1
1. Projection
2. Seat holder
1
2
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4-13
1
2
34
5
6
7
8
9
10
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cident.
Adjust the spring preload as follows.
Turn the spring preload adjusting ring in direction
(a) to increase the spring preload and thereby
harden the suspension, and in direction (b) to de-
crease the spring preload and thereby soften the
suspension.
TIP
A special wrench can be obtained at a Yamaha
dealer to make this adjustment.
EBU19102
Adjusting the rear shock absorber
assembly
The spring preload, rebound damping and com-
pression damping forces of the rear shock absorb-
er assembly can be adjusted to suit the rider’s
weight and the riding conditions.WARNING
EWB00460
Suspension components become hot during
operation. Never touch the compression
damping force adjusting knob, the rebound
damping force adjusting dial or the oil reser-
voir with your bare hand or skin until suspen-
sion components have cooled.
1. Spring preload adjusting ring
2. Position indicator
1
2
3
4
5
12
(a)
(b)
Spring preload setting:
Minimum (soft):
1
Standard:
3
Maximum (hard):
5
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4-16
1
2
34
5
6
7
8
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10
11
knob in direction (a) to increase the compression
damping force and thereby harden the damping,
and in direction (b) to decrease the compression
damping force and thereby soften the damping.TIP
Although the total number of clicks of a damping
force adjusting mechanism may not exactly match
the above specifications due to small differences in
production, the actual number of clicks always rep-
resents the entire adjusting range. To obtain a pre-
cise adjustment, it would be advisable to check the
number of clicks of each damping force adjusting
mechanism and to modify the specifications as
necessary.
WARNING
EWB00430
This shock absorber assembly contains highly
pressurized nitrogen gas. Read and under-
stand the following information before han-
dling the shock absorber assembly.
1. Compression damping force adjusting knob
1(a) (b)
Compression damping setting:
Minimum (soft):
1 click(s) in direction (a)*
Standard:
11 click(s) in direction (a)*
Maximum (hard):
15 click(s) in direction (a)*
* With the adjusting knob fully turned in direc-
tion (b)
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Page 42 of 146
4-17
1
2
34
5
6
7
8
9
10
11
Do not tamper with or attempt to open the
cylinder assembly.
Do not subject the shock absorber assembly
to an open flame or other high heat source.
This may cause the unit to explode due to ex-
cessive gas pressure.
Do not deform or damage the cylinder in any
way. Cylinder damage will result in poor
damping performance.
Do not dispose of a damaged or worn out
shock absorber assembly yourself. Take the
shock absorber assembly to a Yamaha deal-
er for any service.
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8-6
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2
3
4
5
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78
9
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5
*
Brake hoses
Check for cracks or other damage, and replace if
necessary.
√√√√
Replace. Every 4 years
6
*
Parking brake
Check operation and adjust if necessary.
√√√√√
7
*
Wheels
Check runout and for damage, and replace if nec-
essary.
√√√√√
8
*
Tires
Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.
√√√√√
9
*
Wheel hub bearings
Check for looseness or damage, and replace if
necessary.
√ √√√
10
*
Upper and lower
arm pivots
Lubricate with lithium-soap-based grease.
√√√
11 Drive chain
Check chain slack and adjust if necessary.
Check rear wheel alignment and correct if neces-
sary.
Clean and lubricate.
√ √√√
12
*
Drive chain roller
Check for wear and replace if necessary.
√√√
13
*
Chassis fasteners
Make sure that all nuts, bolts, and screws are
properly tightened.
√√√√√
14
*
Shock absorber
assemblies
Check operation and correct if necessary.
Check for oil leakage and replace if necessary.
√√√
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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9-1
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2
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4
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7
89
10
11
EBU25860
CLEANING AND STORAGE
EBU25921
Cleaning
Frequent, thorough cleaning of your ATV will not
only enhance its appearance but will improve its
general performance and extend the useful life of
many components.
1. Before cleaning the ATV:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plugs and all filler
caps are properly installed.
2. If the engine case is excessively greasy, apply
degreaser with a paint brush. Do not apply de-
greaser to the chain, sprockets or wheel ax-
les.
3. Rinse the dirt and degreaser off with a garden
hose. Use only enough pressure to do the job.
WARNING! Wet brakes may have reduced
stopping ability, 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 lin-
ings.
[EWB02311]
NOTICE:
Excessive water pres-sure may cause water seepage and
deterioration of wheel bearings, brakes,
transmission seals and electrical devices.
Many expensive repair bills have resulted
from improper high-pressure detergent
applications such as those available in
coin-operated car washers.
[ECB00711]
4. Once most of the dirt has been hosed off,
wash all surfaces with warm water and mild,
detergent-type soap. An old toothbrush or bot-
tle brush is handy for hard-to-reach places.
5. Rinse the ATV off immediately with clean wa-
ter and dry all surfaces with a chamois, clean
towel or soft absorbing cloth.
6. Dry the chain and lubricate it to prevent it from
rusting.
7. Clean the seat with a vinyl upholstery cleaner
to keep the cover pliable and glossy.
8. Automotive type wax may be applied to all
painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish. When finished cleaning, start the
engine and let it idle for several minutes.
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