Yamaha FJR13AEV(C) Service Manual page 54

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)
Cylinder head valve seat width (exhaust)
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)
Winding direction (exhaust)
Cylinder
Bore
Taper limit
Out of round limit
Piston
Piston-to-cylinder clearance
Limit
Diameter D
ENGINE SPECIFICATIONS
0.010–0.037 mm (0.0004–0.0015 in)
0.080 mm (0.0032 in)
0.020–0.047 mm (0.0008–0.0019 in)
0.105 mm (0.0041 in)
0.010 mm (0.0004 in)
0.90–1.10 mm (0.0354–0.0433 in)
0.90–1.10 mm (0.0354–0.0433 in)
39.73 mm (1.56 in)
37.74 mm (1.49 in)
39.73 mm (1.56 in)
37.74 mm (1.49 in)
33.00 mm (1.30 in)
33.00 mm (1.30 in)
21.85 N/mm (124.76 lb/in) (2.23 kgf/mm)
28.34 N/mm (161.82 lb/in) (2.89 kgf/mm)
21.85 N/mm (124.76 lb/in) (2.23 kgf/mm)
28.34 N/mm (161.82 lb/in) (2.89 kgf/mm)
136.00–158.00 N (30.57–35.52 lb) (13.87–
16.11 kgf)
136.00–158.00 N (30.57–35.52 lb) (13.87–
16.11 kgf)
2.5°/1.7 mm (2.5°/0.067 in)
2.5°/1.7 mm (2.5°/0.067 in)
Clockwise
Clockwise
79.000–79.010 mm (3.1102–3.1106 in)
0.050 mm (0.0020 in)
0.050 mm (0.0020 in)
0.020–0.045 mm (0.0008–0.0018 in)
0.12 mm (0.0047 in)
78.965–78.980 mm (3.1089–3.1094 in)
2-5