check engine light YAMAHA WOLVERINE 350 2006 Owners Manual

EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 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
Indicator lights and warning light ................ 4-2
Handlebar switches .................................... 4-3
Throttle lever .............................................. 4-4
Speed limiter .............................................. 4-4
Front brake lever ........................................ 4-5
Brake pedal and rear brake lever ............... 4-5
Parking brake ............................................. 4-6
Drive select lever ........................................ 4-7
Fuel tank cap .............................................. 4-7
Fuel ............................................................ 4-8
Fuel cock .................................................... 4-9Starter (choke) ...........................................4-10
Seat ..........................................................4-11
Storage compartment ...............................4-12
Adjusting the front shock absorber
assemblies ..............................................4-13
Adjusting the rear shock absorber
assembly .................................................4-14
PRE-OPERATION CHECKS ..........................5-1
Pre-operation check list ..............................5-1
Fuel .............................................................5-3
Engine oil ....................................................5-3
Final gear oil ...............................................5-3
Front and rear brakes .................................5-3
Throttle lever ...............................................5-4
Tires ............................................................5-4
Measuring the tire pressure ........................5-5
Tire wear limit .............................................5-6
Chassis fasteners .......................................5-6
Instruments, lights and switches .................5-6
OPERATION...................................................6-1
Starting a cold engine .................................6-1
Starting a warm engine ...............................6-3U3D560E0.book Page 1 Tuesday, December 27, 2005 12:13 PM

Operating the drive select lever and
driving in reverse ...................................... 6-3
Engine break-in .......................................... 6-4
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-5
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 ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-17
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH SHALLOW
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-22
SLIDING AND SKIDDING ......................... 7-22
WHAT TO DO IF... .................................... 7-23
WHAT TO DO... ........................................ 7-23
PERIODIC MAINTENANCE AND MINOR
REPAIR .......................................................... 8-1
Owner’s manual and tool kit ....................... 8-1Periodic maintenance and lubrication
chart ..........................................................8-3
Removing and installing the panel ..............8-7
Checking the spark plug .............................8-7
Engine oil and oil filter cartridge ..................8-9
Final gear oil .............................................8-13
Cleaning the air filter element ...................8-16
Cleaning the spark arrester ......................8-19
V-belt cooling duct check hose .................8-20
V-belt case drain plug ...............................8-20
Adjusting the carburetor ............................8-21
Adjusting the engine idling speed .............8-21
Adjusting the throttle cable free play .........8-22
Valve clearance ........................................8-23
Adjusting the drive select lever safety
system cable ...........................................8-23
Checking the front brake pads and rear
brake shoes ............................................8-23
Checking the brake fluid level ...................8-24
Changing the brake fluid ...........................8-25
Checking the front brake lever free
play .........................................................8-26
Adjusting the brake pedal and rear brake
lever free play .........................................8-26
Brake light switches ..................................8-29
Checking and lubricating the cables .........8-30
U3D560E0.book Page 2 Tuesday, December 27, 2005 12:13 PM

1-3
1 hill. If you stall or roll backwards, follow the spe-
cial procedure for braking described in this man-
ual. Dismount on the uphill side or to a side if
pointed straight uphill. Turn the ATV around and
remount, following the procedure described in
this manual.

Always check for obstacles before operating in a
new area.
Never attempt to operate over large obstacles,
such as large rocks or fallen trees. Always follow
proper procedures when operating over obsta-
cles as described in this manual.
Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such as
ice, go slowly and be very cautious in order to re-
duce the chance of skidding or sliding out of con-
trol.
Never operate an ATV in fast flowing water or in
water deeper than that recommended in this
manual. Remember that wet brakes may have
reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.

Always be sure there are no obstacles or people
behind you when you operate in reverse. When
it is safe to proceed in reverse, go slowly.
Always use the size and type of tires specified in
this manual.
Always maintain proper tire pressure as de-
scribed in this manual.
Never modify an ATV through improper installa-
tion or use of accessories.
Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow in-
structions in this manual for carrying cargo. Al-
low greater distance for braking.
WARNING
EWB00061
Always turn off the engine when refueling.
Do not refuel right after the engine has been
running and is still very hot.
Do not spill gasoline on the engine or ex-
haust pipe/muffler when refueling. Never re-
fuel while smoking, or in the vicinity of
sparks, open flames, or other sources of ig-
nition such as the pilot lights of water heat-
ers and clothes dryers. Gasoline can catch
fire and you could be burned.
U3D560E0.book Page 3 Tuesday, December 27, 2005 12:13 PM

3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Front shock absorber assembly spring preload adjusting
ring
2. Fuel cock
3. Air filter case
4. Fuses
5. Storage compartment and tool kit
6. Seat lock lever
7. Rear shock absorber assembly spring preload adjusting
ring
8. Engine oil dipstick
9. Oil filter cartridge
10.V-belt cooling duct check hose
1. Spark arrester
2. Tail/brake light
3. Spark plug
4. Front shock absorber assembly spring preload adjusting
ring
5. Brake pedal
6. V-belt case
U3D560E0.book Page 1 Tuesday, December 27, 2005 12:13 PM

4-2
4
EBU17811Indicator lights and warning light EBU17830Reverse indicator light “”
This indicator light comes on when the transmis-
sion is in the reverse position.EBU17860Neutral indicator light “”
This indicator light comes on when the transmis-
sion is in the neutral position.
EBU26931Oil temperature warning light “”
This warning light comes on when the engine over-
heats. When this occurs, stop the engine as soon
as it is safe to do so, and allow it to cool.
The electrical circuit of the warning light can be
checked by turning the key to “ON”, with the engine
stop switch set to “”, and then pushing the start
switch.
If the warning light does not come on while the start
switch is being pushed, then go off after the start
switch is released, have a Yamaha dealer check
the electrical circuit.
If the warning light stays on, allow the engine to
cool. If the warning light stays on when the engine
is cool, have a Yamaha dealer check the electrical
circuit.CAUTION:ECB00010
The engine may overheat if the ATV is over-
loaded. In this case, reduce the load to spec-
ification.
Start the engine after making sure that the
warning light is out. Continuous use while
the warning light is on may cause damage tothe engine.
1. Reverse indicator light “R”
2. Neutral indicator light “N”
3. Oil temperature warning light “”U3D560E0.book Page 2 Tuesday, December 27, 2005 12:13 PM

6-1
6
EBU19880
OPERATION
EBU19900Read the Owner’s Manual carefully before riding
the ATV.
WARNING
EWB00630Read 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. If there is a control or func-
tion you do not understand, ask your Yamahadealer.EBU26950Starting a cold engine
WARNING
EWB00640Always 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 acci-dent or collision.
CAUTION:ECB00150See the “Engine break-in” section on page 6-4prior to operating the engine for the first time.
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 “”.
4. Shift the drive select lever into the neutral po-
sition. The neutral indicator light should come
on. If the indicator light does not come on,
have a Yamaha dealer check the electrical cir-
cuit.NOTE:The engine can be started under the following con-
ditions:
The drive select lever is in the neutral position.
The rear brake lever is applied with the drive se-
lect lever in any position. However, it is recom-
mended to shift into the neutral position beforestarting the engine.
U3D560E0.book Page 1 Tuesday, December 27, 2005 12:13 PM

6-4
63. Shift from neutral to reverse and vice versa by
moving the drive select lever along the shift
guide.
NOTE:When in reverse, the reverse indicator light should
come on. If the indicator light does not come on,have a Yamaha dealer check the electrical circuit.
4. Check behind for people or obstacles, and
then release the brake pedal.5. Open the throttle lever gradually and continue
to watch to the rear while backing.
WARNING
EWB00720Improper operation in reverse could make you
hit an obstacle or even a person behind you,
resulting in serious injury. When you shift into
reverse, make sure there are no people or ob-
stacles behind you. When it is safe to proceed,go slowly.EBU20681Engine break-in There is never a more important period in the life of
your engine than the first 20 hours of riding. For
this reason, you should read the following material
carefully.
Since the engine is brand new, do not put an ex-
cessive load on it for the first 20 hours. The various
parts in the engine wear and polish themselves to
the correct operating clearances. During this peri-
od, prolonged full-throttle operation or any condi-
tion that might result in engine overheating must be
avoided.
1. Drive select lever
2. F (Forward)
3. N (Neutral)
4. R (Reverse)U3D560E0.book Page 4 Tuesday, December 27, 2005 12:13 PM

8-8
8 plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as shown, with the
spark plug wrench included in the owner’s tool
kit.To check the spark plug
1. Check that the porcelain insulator around the
center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).
NOTE:If the spark plug shows a distinctly different color,
the engine could be defective. Do not attempt to di-
agnose such problems yourself. Instead, have aYamaha dealer check the ATV.
2. Check the spark plug for electrode erosion
and excessive carbon or other deposits, and
replace it if necessary.
1. Spark plug cap
1. Spark plug wrench
U3D560E0.book Page 8 Tuesday, December 27, 2005 12:13 PM

8-30
8 3. Install the panel.
EBU24900Checking and lubricating the cables The operation and the condition of all control ca-
bles should be checked before each ride, and the
cables and cable ends should be lubricated if nec-
essary. If a cable is damaged or does not move
smoothly, have a Yamaha dealer check or replace
it.
WARNING
EWB02130Inspect cables frequently and replace if dam-
aged. Corrosion can result when the cable
sheaths become damaged, and cables can
also become frayed or kinked, which could re-
strict the operation of controls and lead to anaccident or injury.EBU24911Checking and lubricating the front and
rear brake levers The operation of the front and rear brake levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.
1. Brake light switch
2. Brake light switch adjusting nutRecommended lubricant:
Engine oil
Recommended lubricant:
Lithium-soap-based grease (all-purpose
grease)
U3D560E0.book Page 30 Tuesday, December 27, 2005 12:13 PM

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-16BBattery .......................................................................... 8-32
Brake fluid, changing .................................................... 8-25
Brake fluid level, checking ............................................ 8-24
Brake lever free play, checking the front ...................... 8-26
Brake lever, front ............................................................ 4-5
Brake levers, checking and lubricating ......................... 8-30
Brake light switches ..................................................... 8-29
Brake pads and shoes, checking ................................. 8-23
Brake pedal and brake lever free play (rear),
adjusting ..................................................................... 8-26
Brake pedal and rear brake lever ................................... 4-5
Brake pedal, checking and lubricating ......................... 8-31
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-30
Carburetor, adjusting .................................................... 8-21
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1DDrive select lever ............................................................ 4-7
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-23
Drive shaft universal joint, lubricating ........................... 8-31
EEngine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-21
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ..................................... 8-9
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-3FFinal gear oil .......................................................... 5-3, 8-13
Fuel ......................................................................... 4-8, 5-3
Fuel cock ........................................................................ 4-9
Fuel tank cap .................................................................. 4-7
Fuses, replacing ........................................................... 8-34HHandlebar switches ........................................................ 4-3
Headlight beam, adjusting ............................................ 8-37
Headlight bulb, replacing .............................................. 8-35IIdentification numbers .................................................. 11-1
Indicator lights and warning light .................................... 4-2
Instruments, lights and switches .................................... 5-6KKey identification number ............................................. 11-1
Knuckle pivots, lubricating ............................................ 8-32
Knuckle shafts, lubricating ........................................... 8-32LLabel locations ............................................................... 2-1
U3D560E0.book Page 1 Tuesday, December 27, 2005 12:13 PM