2012 YAMAHA YFZ450 check engine light

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Page 8 of 152

YAMAHA YFZ450 2012  Owners Manual EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND 
SPECIFICATION LABELS  ............................ 1-1
SAFETY INFORMATION  .............................. 2-1
DESCRIPTION ......................

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YAMAHA YFZ450 2012  Owners Manual Parking ....................................................... 6-5
Parking on a slope  ..................................... 6-6
Accessories and loading  ............................ 6-7
RIDING YOUR

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YAMAHA YFZ450 2012  Owners Manual 4-2
4
EBU17805Indicator light and warning light EBU17860Neutral indicator light“” 
This indicator light comes on when the transmis-
sion is in the neutral position.EBU17930Coolant temperature warn

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YAMAHA YFZ450 2012  Owners Manual 6-1
6
EBU19881
OPERATION
EBU19901Read 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
EWB00631Read the Ow

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YAMAHA YFZ450 2012  Owners Manual 8-13
8
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).
TIPIf t

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YAMAHA YFZ450 2012  Owners Manual 8-28
817. Install the seat.
TIPThe 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 ti

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YAMAHA YFZ450 2012  Owners Manual INDEX
AAccessories and loading  ................................................ 6-7
Air filter element, cleaning ............................................ 8-24BBattery ............................