2009 YAMAHA YZ450F fuel tank removal

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Page 10 of 190

YAMAHA YZ450F 2009  Owners Manual CONTENTS
CHAPTER 1
GENERAL 
INFORMATION
DESCRIPTION ................. 1-1
MACHINE 
IDENTIFICATION ............. 1-2
INCLUDED PARTS .......... 1-2
IMPORTANT 
INFORMATION................. 1-2
CHECKING O

Page 12 of 190

YAMAHA YZ450F 2009  Owners Manual 1-2
MACHINE IDENTIFICATION
MACHINE IDENTIFICATION
There are two significant reasons for 
knowing the serial number of your 
machine:
1. When ordering parts, you can 
give the number to your Yamaha 
de

Page 71 of 190

YAMAHA YZ450F 2009  Owners Manual 4-1
SEAT, FUEL TANK AND SIDE COVERS
ENGINE
This section is intended for those who have basic knowledge and skill concerning the servicing of Yamaha motorcycles 
(e.g., Yamaha dealers, service engineer

Page 72 of 190

YAMAHA YZ450F 2009  Owners Manual 4-2
SEAT, FUEL TANK AND SIDE COVERS
REMOVING THE SIDE COVER
1. Remove:
• Bolt (side cover)
• Left side cover "1"
• Right side cover "2"
Draw the side cover downward to re-
move it because its cl

Page 84 of 190

YAMAHA YZ450F 2009  Owners Manual 4-14
CAMSHAFTS
CAMSHAFTS
REMOVING THE CYLINDER HEAD COVER
Order Part name Qty Remarks
Seat and fuel tank Refer to "SEAT, FUEL TANK AND SIDE 
COVERS" section.
Hot starter plunger Refer to "CARBURETOR"

Page 117 of 190

YAMAHA YZ450F 2009  Owners Manual 4-47
CDI MAGNETO
CDI MAGNETO
REMOVING THE CDI MAGNETO
Order Part name Qty Remarks
Seat and fuel tank  Refer to "SEAT, FUEL TANK AND SIDE 
COVERS" section.
Disconnect the CDI magneto lead.
1 Left cran

Page 119 of 190

YAMAHA YZ450F 2009  Owners Manual 4-49
ENGINE REMOVAL
ENGINE REMOVAL
REMOVING THE ENGINE
Order Part name Qty Remarks
Hold the machine by placing the suitable stand 
under the frame.Refer to "HANDLING NOTE".
Seat and fuel tank Refer t

Page 147 of 190

YAMAHA YZ450F 2009  Owners Manual 5-16
FRONT FORK
FRONT FORK
REMOVING THE FRONT FORK
Order Part name Qty Remarks
Hold the machine by placing the suitable stand 
under the engine.Refer to "HANDLING NOTE".
Front wheel Refer to "FRONT W
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