2009 YAMAHA WOLVERINE 450 check engine light

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Page 8 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION  .............................. 1-1
LOCATION OF THE WARNING AND 
SPECIFICATION LABELS  ............................ 2-1
DESCRIPTION ......................

Page 13 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 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 aro

Page 18 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 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 too

Page 21 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 4-2
4
EBU17813Indicator lights and warning light EBU17842Reverse indicator light“” 
This indicator light comes on when the transmis-
sion is in the reverse position.
Furthermore, this indicator li

Page 44 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 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 pr

Page 91 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 8-16
8 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 th

Page 110 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 8-35
83. Tap the tailpipe lightly, and then use a wire
brush to remove any carbon deposits from the
spark arrester portion of the tailpipe and inside
of the tailpipe housing.
4. Insert the tailpipe in

Page 120 of 148

YAMAHA WOLVERINE 450 2009  Owners Manual 8-45
8
EBU24752Brake light switches The operation of the brake light switches must be
checked and, if necessary, adjusted at the inter-
vals specified in the periodic maintenance and lu-
brication cha
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