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Valve-stem-to-valve-guide clearance (intake)
Limit
Valve-stem-to-valve-guide clearance (exhaust)
Limit
Valve stem runout
Valve spring
Inner 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)
Winding direction (exhaust)
Outer 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)
*
2-5
ENGINE SPECIFICATIONS
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)
0.010 mm (0.0004 in)
38.26 mm (1.51 in)
36.26 mm (1.43 in)
38.26 mm (1.51 in)
36.26 mm (1.43 in)
29.00 mm (1.14 in)
29.00 mm (1.14 in)
7.30 N/mm (41.68 lb/in) (0.74 kgf/mm)
8.80 N/mm (50.25 lb/in) (0.90 kgf/mm)
7.30 N/mm (41.68 lb/in) (0.74 kgf/mm)
8.80 N/mm (50.25 lb/in) (0.90 kgf/mm)
63.00–73.00 N (14.16–16.41 lb) (6.42–7.44 kgf)
63.00–73.00 N (14.16–16.41 lb) (6.42–7.44 kgf)
2.5°/1.7 mm (2.5°/0.067 in)
2.5°/1.7 mm (2.5°/0.067 in)
Counterclockwise
Counterclockwise
43.25 mm (1.70 in)
41.26 mm (1.62 in)
43.25 mm (1.70 in)
41.26 mm (1.62 in)
31.00 mm (1.22 in)
31.00 mm (1.22 in)
12.20 N/mm (69.66 lb/in) (1.24 kgf/mm)
14.90 N/mm (85.08 lb/in) (1.52 kgf/mm)
12.20 N/mm (69.66 lb/in) (1.24 kgf/mm)
14.90 N/mm (85.08 lb/in) (1.52 kgf/mm)
139.00–161.00 N (31.25–36.19 lb) (14.17–
16.42 kgf)
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