2012 YAMAHA YFZ450R engine

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Page 50 of 154

YAMAHA YFZ450R 2012  Owners Manual 5-1
5
EBU19201
PRE-OPERATION CHECKS
EBU19224Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures a

Page 53 of 154

YAMAHA YFZ450R 2012  Owners Manual 5-4
5
EBU19541Fuel Make sure that there is sufficient fuel in the tank.
(See page 4-9.)EBU19560Engine oil Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-1

Page 57 of 154

YAMAHA YFZ450R 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

Page 58 of 154

YAMAHA YFZ450R 2012  Owners Manual 6-2
64. Completely close the throttle lever and start
the engine by pushing the start switch.
TIPIf the engine fails to start, release the start switch,
then push it again. Pause a few seconds before

Page 59 of 154

YAMAHA YFZ450R 2012  Owners Manual 6-3
6
NOTICEECB00200Always 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 gea

Page 60 of 154

YAMAHA YFZ450R 2012  Owners Manual 6-4
6erly lubricated only when the engine is run-
ning. Inadequate lubrication may damage
the transmission.
Always use the clutch when changing gears.
The engine, transmission and drive train are
not

Page 61 of 154

YAMAHA YFZ450R 2012  Owners Manual 6-5
6
EBU20904Parking on a slope 
WARNING
EWB00851Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an

Page 66 of 154

YAMAHA YFZ450R 2012  Owners Manual 7-3
7Riding your ATV requires skills acquired
through practice over a period of time.
Do not attempt to operate at maximum perfor-
mance until you are totally familiar with the ATV
’s
handling and p
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