Yamaha Star XVS950A 2009 Service Manual page 27

Valve seat width C (intake)
Limit
Valve seat width C (exhaust)
Limit
Valve margin thickness D (intake)
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
Valve guide position
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)
ENGINE SPECIFICATIONS
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)
1.00 mm (0.0394 in)
1.00 mm (0.0394 in)
5.975–5.990 mm (0.2352–0.2358 in)
5.945 mm (0.2341 in)
5.960–5.975 mm (0.2346–0.2352 in)
5.930 mm (0.2335 in)
6.000–6.012 mm (0.2362–0.2367 in)
6.050 mm (0.2382 in)
6.000–6.012 mm (0.2362–0.2367 in)
6.050 mm (0.2382 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)
0.010 mm (0.0004 in)
12.7–13.1 mm (0.500–0.515 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)
42.43 mm (1.67 in)
40.31 mm (1.59 in)
42.43 mm (1.67 in)
40.31 mm (1.59 in)
35.00 mm (1.38 in)
35.00 mm (1.38 in)
24.75 N/mm (2.52 kgf/mm, 141.35 lbf/in)
33.32 N/mm (3.40 kgf/mm, 190.30 lbf/in)
24.75 N/mm (2.52 kgf/mm, 141.35 lbf/in)
33.32 N/mm (3.40 kgf/mm, 190.30 lbf/in)
171–197 N (17.44–20.09 kgf, 38.45–44.30 lbf)
171–197 N (17.44–20.09 kgf, 38.45–44.30 lbf)
2-4