2003 YAMAHA WR 450F tow

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Page 52 of 754

YAMAHA WR 450F 2003  Owners Manual 1 - 11
GEN
INFO
CONTROL FUNCTIONS
EC152000
CLUTCH LEVER
The clutch lever 1 is located on the left han-
dlebar; it disengages or engages the clutch.
Pull the clutch lever to the handlebar to disen-
gag

Page 72 of 754

YAMAHA WR 450F 2003  Owners Manual 1 - 20
GEN
INFO
CLEANING AND STORAGE
EC1B0000
CLEANING AND STORAGE
EC1B1000
CLEANING
Frequent cleaning of your machine will
enhance its appearance, maintain good over-
all performance, and extend the

Page 75 of 754

YAMAHA WR 450F 2003  Owners Manual GEN
INFO
NETTOYAGE ET RANGEMENT
REINIGUNG UND STILLEGUNG
LIMPIEZA Y ALMACENAMIENTO
8. Lack- und Chromflächen kön-
nen mit Autowachs poliert
werden. Kombinierte Reiniger
und Polituren sind zu vermei-

Page 188 of 754

YAMAHA WR 450F 2003  Owners Manual 3 - 5
INSP
ADJ
EC350000
ENGINE
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 be blown

Page 232 of 754

YAMAHA WR 450F 2003  Owners Manual 3 - 26
INSP
ADJ
CHASSIS/BRAKE SYSTEM AIR BLEEDING
EC360000
CHASSIS
EC361012
BRAKE SYSTEM AIR BLEEDING
WARNING
Bleed the brake system if:
The system has been disassembled.
A brake hose has been loose

Page 312 of 754

YAMAHA WR 450F 2003  Owners Manual  
4 - 6
ENG
 
RADIATOR 
EC456000 
HANDLING NOTE
WARNING
 
Do not remove the radiator cap when the
engine and radiator are hot. Scalding hot
fluid and steam may be blown out under
pressure, which could

Page 450 of 754

YAMAHA WR 450F 2003  Owners Manual 4 - 75
ENGKICK AXLE AND SHIFT SHAFT
3. Install:
Spring guide 1 
NOTE:
Slide the spring guide into the kick axle, make
sure the groove a in the spring guide fits on
the stopper of the torsion spring.

Page 724 of 754

YAMAHA WR 450F 2003  Owners Manual 7 - 10
TUN
EC720000
CHASSIS
EC71P002
Selection of the secondary reduction ratio
(Sprocket)
Secondary 
reduction = 
ratio
<Requirement for selection of secondary gear
reduction ratio>
It is generally
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