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Valve margin thickness D (exhaust)
Valve stem diameter (intake)
Limit
Valve stem diameter (exhaust)
Limit
Valve guide inside diameter (intake)
Limit
Valve guide inside diameter (exhaust)
Limit
Valve-stem-to-valve-guide clearance (intake)
Limit
Valve-stem-to-valve-guide clearance (exhaust)
Limit
Valve stem runout
Cylinder head valve seat width (intake)
Limit
Cylinder head valve seat width (exhaust)
Limit
Valve spring
Free length (intake)
Limit
Free length (exhaust)
Limit
Installed length (intake)
Installed length (exhaust)
Spring rate K1 (intake)
Spring rate K2 (intake)
Spring rate K1 (exhaust)
Spring rate K2 (exhaust)
Installed compression spring force (intake)
Installed compression spring force (exhaust)
Spring tilt (intake)
Spring tilt (exhaust)
Winding direction (intake)
D
2-5
ENGINE SPECIFICATIONS
0.60–0.80 mm (0.0236–0.0315 in)
3.975–3.990 mm (0.1565–0.1571 in)
3.945 mm (0.1553 in)
3.960–3.975 mm (0.1559–0.1565 in)
3.930 mm (0.1547 in)
4.000–4.012 mm (0.1575–0.1580 in)
4.050 mm (0.1594 in)
4.000–4.012 mm (0.1575–0.1580 in)
4.050 mm (0.1594 in)
0.010–0.037 mm (0.0004–0.0015 in)
0.080 mm (0.0032 in)
0.025–0.052 mm (0.0010–0.0020 in)
0.100 mm (0.0039 in)
0.040 mm (0.0016 in)
0.90–1.10 mm (0.0354–0.0433 in)
1.6 mm (0.06 in)
0.90–1.10 mm (0.0354–0.0433 in)
1.6 mm (0.06 in)
35.59 mm (1.40 in)
33.81 mm (1.33 in)
35.59 mm (1.40 in)
33.81 mm (1.33 in)
30.39 mm (1.20 in)
30.39 mm (1.20 in)
18.84 N/mm (107.60 lb/in) (1.92 kgf/mm)
24.52 N/mm (140.01 lb/in) (2.50 kgf/mm)
18.84 N/mm (107.60 lb/in) (1.92 kgf/mm)
24.52 N/mm (140.01 lb/in) (2.50 kgf/mm)
91.2–104.9 N (20.50–23.59 lbf) (9.3–10.7 kgf)
91.2–104.9 N (20.50–23.59 lbf) (9.3–10.7 kgf)
2.5°/1.6 mm
2.5°/1.6 mm
Clockwise
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