2004 YAMAHA YZ450F check engine

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Page 151 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 4
INSP
ADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
EC320000
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good ope

Page 154 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 5
INSP
ADJ
EC350000
ENGINE
EC351011
COOLANT LEVEL INSPECTION
WARNING
Do not remove the radiator cap 1, drain
bolt and hoses when the engine and radia-
tor are hot. Scalding hot fluid and steam
may

Page 158 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 7
INSP
ADJ
RADIATOR CAP INSPECTION
CAUTION:
Do not mix more than one type of ethyl-
ene glycol antifreeze containing corro-
sion inhibitors for aluminum engine.
Do not use water containing impur

Page 164 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 10
INSP
ADJTHROTTLE CABLE ADJUSTMENT/
THROTTLE LUBRICATION
EC35A001
THROTTLE CABLE ADJUSTMENT
1. Check:
Throttle grip free play a 
Out of specification → Adjust.
Throttle grip free play a:
3 ~

Page 166 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 11
INSP
ADJHOT STARTER LEVER ADJUSTMENT/
AIR FILTER CLEANING
HOT STARTER LEVER ADJUSTMENT
1. Check:
Hot starter lever free play a
Out of specification → Adjust.
2. Adjust:
Hot starter lever fr

Page 170 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 13
INSP
ADJ
7. Install:
Air filter element 1 
Washer
Fitting bolt
NOTE:
Align the projection a on filter guide with the
hole b in air filter case.
T R..2 Nm (0.2 m · kg, 1.4 ft · lb)
ENGINE O

Page 176 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 16
INSP
ADJ
ENGINE OIL REPLACEMENT
6. If the oil filter is to be replaced during this
oil change, remove the following parts
and reinstall them.
7. Install:
Plain washer 1 
Oil strainer (frame)

Page 178 of 642

YAMAHA YZ450F 2004  Notices Demploi (in French) 3 - 17
INSP
ADJ
PILOT SCREW ADJUSTMENT
10. Install:
Oil filler plug
11. Inspect:
Engine (for oil leaks)
Oil level
Refer to “ENGINE OIL LEVEL INSPEC-
TION”.
12. Check:
Oil pressure
Checking ste