Yamaha YZ450F(Y Owner's Manual page 31

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Item
Preload length
<Min.–Max.>
Spring rate, STD
Optional spring
Enclosed gas pressure
*Spring specification varies according to the differ-
ence in the production lot.
Swingarm:
Swingarm free play limit
End
Wheel:
Front wheel type
Rear wheel type
Front rim size/material
Rear rim size/material
Rim runout limit:
Radial
Lateral
Drive chain:
Type/manufacturer
Number of links
Chain slack
Chain length (15 links)
Front disc brake:
Disc outside dia.×Thickness
Pad thickness
Master cylinder inside dia.
Caliper cylinder inside dia.
Brake fluid type
Rear disc brake:
Disc outside dia.×Thickness
Deflection limit
Pad thickness
Master cylinder inside dia.
Caliper cylinder inside dia.
Brake fluid type
MAINTENANCE SPECIFICATIONS
Standard
1.5–13 mm (0.06–0.51
in)
K = 54.0 N/mm (5.50 kg/
mm, 308.0 lb/in)
Yes
2
1,000 kPa (10 kg/cm
,
142 psi)
----
Spoke wheel
Spoke wheel
21 × 1.60/Aluminum
19 × 2.15/Aluminum
----
----
DID520DMA2 SDH/DAIDO
113 links + joint
50–60 mm (2.0–2.4 in)
----
250 × 3.0 mm (9.84 × 0.12 in)
4.4 mm (0.17 in)
9.52 mm (0.375 in)
22.65 mm (0.892 in) × 2
DOT #4
245 × 4.0 mm (9.65 × 0.16 in)
----
6.4 mm (0.25 in)
11.0 mm (0.433 in)
25.4 mm (1.000 in) × 1
DOT #4
2-9
Limit
----
----
----
1.0 mm (0.04
in)
----
----
----
----
2.0 mm (0.08
in)
2.0 mm (0.08
in)
----
----
----
242.9 mm
(9.563 in)
250 × 2.5 mm
(9.84 × 0.10 in)
1.0 mm (0.04
in)
----
----
----
245 × 3.5 mm
(9.65 × 0.14 in)
0.15 mm
(0.006 in)
1.0 mm (0.04
in)
----
----
----

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2009 yz450fy2009 yz450f

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