Specifications - Yamaha YZ450FA 2011 Owner's Service Manual

Item
Tilt limit* (IN)
Tilt limit* (EX)
Direction of winding (top view) (IN)
Direction of winding (top view) (EX)
Piston:
Piston to cylinder clearance
Piston size "D"
Measuring point "H"
Piston off-set
Piston pin bore inside diameter
Piston pin outside diameter
Piston rings:
Top ring:
Type
Dimensions (B × T)
End gap (installed)
Side clearance (installed)
MAINTENANCE SPECIFICATIONS
Standard
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Clockwise
Clockwise
0.020–0.045 mm (0.0008–0.0018
in)
96.965–96.980 mm
(3.8175–3.8181 in)
9.0 mm (0.354 in)
Zero mm (Zero in)
18.004–18.015 mm
(0.7088–0.7093 in)
17.991–18.000 mm
(0.7083–0.7087 in)
Barrel
1.00 × 3.30 mm (0.04 × 0.13 in)
0.20–0.30 mm (0.008–0.012 in)
0.015–0.065 mm (0.0006–0.0026
in)
2-7
Limit
2.5°/1.8 mm
(2.5°/0.071
in)
2.5°/1.6 mm
(2.5°/0.063
in)
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0.1 mm
(0.004 in)
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18.045 mm
(0.7104 in)
17.971 mm
(0.7075 in)
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0.55 mm
(0.022 in)
0.120 mm
(0.0047 in)