check engine YAMAHA YZ450F 2015 Owners Manual

YAMAHA YZ450F 2015 Owners Manual YZ450F 2015 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/53976/w960_53976-0.png YAMAHA YZ450F 2015 Owners Manual

Page 7 of 360

YAMAHA YZ450F 2015  Owners Manual EAS1SL5005
SAFETY INFORMATION
THIS MACHINE IS DESIGNED STRICTLY FOR COMPETITION USE, ONLY ON A CLOSED 
COURSE. It is illegal for this machine to be operated on any public street, road, or highway. Off

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YAMAHA YZ450F 2015  Owners Manual 1
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TABLE OF CONTENTS
GENERAL INFORMATION
SPECIFICATIONS
PERIODIC CHECKS AND ADJUST-
MENTS
CHASSIS
ENGINE
COOLING SYSTEM
FUEL SYSTEM
ELECTRICAL SYSTEM
TROUBLE SHOOTING
TUNING

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YAMAHA YZ450F 2015  Owners Manual STARTING AND BREAK-IN.......................................................................... 1-22
FUEL ..............................................................................................

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YAMAHA YZ450F 2015  Owners Manual DESCRIPTION
1-4
EAS1SL5009
DESCRIPTION
TIP
Designs and specifications of the vehicle are subject to change without notice. Therefore, please 
note that the descriptions in this manual may be different

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YAMAHA YZ450F 2015  Owners Manual IMPORTANT INFORMATION
1-10
EAS20180
IMPORTANT INFORMATION
EAS1SL5023PREPARATION FOR REMOVAL AND DIS-
ASSEMBLY
1. Before the jobs, completely remove mud, 
dust, and the like in order to prevent the en-

Page 33 of 360

YAMAHA YZ450F 2015  Owners Manual SPECIAL TOOLS
1-19
Crankcase separating tool
90890-04152
YU-A9642This tool is used to remove 
the crankshaft.
Ignition checker
90890-06754
Oppama pet-4000 spark 
checker
YM-34487This tool is used to c

Page 37 of 360

YAMAHA YZ450F 2015  Owners Manual STARTING AND BREAK-IN
1-23
7. To stop the engine, push the engine stop 
switch “1”.
TIP
Continue pushing the engine stop switch till the 
engine comes to a full stop.
EAS1SL5045STARTING A WARM ENG

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YAMAHA YZ450F 2015  Owners Manual MAINTENANCE AFTER BREAK-IN
1-24
EAS1SL5047
MAINTENANCE AFTER BREAK-IN
After a break-in, perform careful maintenance 
to get ready for the next practice or race.
Refer to “PRE-OPERATION INSPECTION 
A

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YAMAHA YZ450F 2015  Owners Manual TORQUE-CHECK POINTS
1-25
EAS1SL5049
TORQUE-CHECK POINTS
Frame construction Frame to rear frame
Frame to engine protector
Combined seat and fuel tank Fuel tank to frame
Engine mounting Frame to engine

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YAMAHA YZ450F 2015  Owners Manual TIGHTENING TORQUES
2-14
EAS1SL5058ENGINE TIGHTENING TORQUES
TIP
- marked portion shall be checked for torque tightening after break-in or before each race.
ITEMThread 
sizeQ’ty TIGHTENING TORQUES Re
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