Yamaha YZ450F(X) Owner's Service Manual page 30

Side clearance
Housing and rotor clearance
Bypass valve setting pressure
Cooling:
Radiator core size
Width
Height
Thickness
Radiator cap opening pressure
Radiator capacity (total)
Water pump
Type
CHASSIS
Item
Steering system:
Steering bearing type
Front suspension:
Front fork travel
Fork spring free length
Spring rate, STD
Optional spring
Oil capacity
Oil grade
Inner tube outer diameter
Front fork top end
Rear suspension:
Shock absorber travel
Spring free length
Fitting length
One I.D. mark
Two I.D. marks
Three I.D. marks
<Min.–Max.>
One I.D. mark
Two I.D. marks
Three I.D. marks
Spring rate, STD
Item
MAINTENANCE SPECIFICATIONS
Standard
0.09–0.17 mm (0.0035–0.0067 in)
0.03–0.10 mm (0.0012–0.0039 in)
40–80 kPa (0.4–0.8 kg/cm
psi)
120.2 mm (4.73 in)
240 mm (9.45 in)
22 mm (0.87 in)
110 kPa (1.1 kg/cm
0.56 L (0.49 Imp qt, 0.59 US qt)
Single-suction centrifugal pump
Standard
Taper roller bearing
300 mm (11.8 in)
454 mm (17.9 in)
K = 4.6 N/mm (0.469 kg/mm, 26.3 lb/in)
Yes
3
541 cm (19.0 lmp oz, 18.3 US oz)
Suspension oil "S1"
48 mm (1.89 in)
5 mm (0.20 in)
USA, CDN, AUS, NZ,
ZA
131.5 mm (5.18 in)
Approx.275 mm (10.83
in)
267 mm (10.51 in)
273 mm (10.75 in)
264.5 mm (10.41 in)
255.5–273.5 mm
(10.06–10.77 in)
261.5–279.5 mm
(10.30–11.00 in)
253.0–271.0 mm (9.96–
10.67 in)
K = 54.0 N/mm (5.50 kg/
mm, 308.0 lb/in)
2-8
2
, 5.69–11.38
2
, 15.6 psi)
EUROPE
←
←
262 mm (10.31 in)
268 mm (10.55 in)
259.5 mm (10.22 in)
←
←
←
←
Limit
0.24 mm (0.009
in)
0.17 mm (0.007
in)
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Limit
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449 mm (17.7
in)
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