2006 YAMAHA WR 450F Notices Demploi (in French)

Page 97 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 8 Clutch:
Friction plate thickness 2.92 ~ 3.08 mm 
(0.115 ~ 0.121 in)2.8 mm 
(0.110 in)
Quantity 8 ----
Clutch plate 1 thickness 1.9 ~ 2.1 mm (0.075 ~ 0.083 in) ----
Quantity 4 ----
Warp limi

Page 98 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 9 Lubrication system:
Oil filter type Paper type ----
Oil pump type Trochoid type ----
Tip clearance “A”0.12 mm or less 
(0.0047 in or less)0.20 mm 
(0.008 in)
Tip clearance “B”0.09 ~

Page 99 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 10 Item Standard
Lubrication chart:
Pressure feed
Splashed scavenge
Oil strainer
Oil pan Oil pump rotor 2
Oil pump rotor 1
Oil tank
Oil filter
Check ball
Cylinder head
Crank pinPiston pinPist

Page 100 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 11 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Spark plug M10S × 1.0 1 13 1.3 9.4
Camshaft cap M6 × 1.0 10 10 1.0 7.2
Cylinder head blind plug screw M12 × 1.0

Page 101 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 12
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race.
NOTE:
*1: Tighten the cylinder head bolts to 30 Nm (3.0 m  kg, 22 ft  lb) in the proper

Page 102 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 13
EC212201
CHASSIS
Item Standard Limit
Steering system:
Steering bearing type Taper roller bearing ----
Front suspension: USA, CDN EUROPE AUS, NZ, ZA
Front fork travel 300 mm (11.8 in)←

Page 103 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 14 Wheel:
Front wheel type Spoke wheel ----
Rear wheel type Spoke wheel ----
Front rim size/material 21 × 1.60/Aluminum ----
Rear rim size/material 18 × 2.15/Aluminum ----
Rim runout limit:

Page 104 of 786

YAMAHA WR 450F 2006  Notices Demploi (in French) SPEC
2 - 15
NOTE:
1. First, tighten the ring nut approximately 38 Nm (3.8 m  kg, 27 ft  lb) by using the ring nut
wrench, then loosen the ring nut one turn.
2. Retighten the ring nut 7 Nm (0.7 m  k