Yamaha XV19SX(C) Service Manual page 33

Limit
Valve-stem-to-valve-guide clearance (intake)
Limit
Valve-stem-to-valve-guide clearance (exhaust)
Limit
Valve stem runout
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)
Valve lifter
Valve lifter outside diameter (intake)
Valve lifter outside diameter (exhaust)
Valve lifter hole inside diameter (intake)
Valve lifter hole inside diameter (exhaust)
Valve-lifter-to-valve-lifter-hole clearance
Valve push rod
Valve push rod 1 length
Valve push rod 2 length
Valve push rod runout
ENGINE SPECIFICATIONS
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)
46.71 mm (1.84 in)
44.71 mm (1.76 in)
46.71 mm (1.84 in)
44.71 mm (1.76 in)
32.66 mm (1.29 in)
32.66 mm (1.29 in)
16.58 N/mm (94.67 lb/in) (1.69 kgf/mm)
21.98 N/mm (125.51 lb/in) (2.24 kgf/mm)
16.58 N/mm (94.67 lb/in) (1.69 kgf/mm)
21.98 N/mm (125.51 lb/in) (2.24 kgf/mm)
217.00–249.00 N (48.78–55.98 lb) (22.13–
25.39 kgf)
217.00–249.00 N (48.78–55.98 lb) (22.13–
25.39 kgf)
2.5 °/2.0 mm
2.5 °/2.0 mm
Clockwise
Clockwise
22.962–22.974 mm (0.9040–0.9045 in)
22.962–22.974 mm (0.9040–0.9045 in)
23.000–23.021 mm (0.9055–0.9063 in)
23.000–23.021 mm (0.9055–0.9063 in)
0.026–0.059 mm (0.0010–0.0023 in)
286.5 mm (11.280 in)
288.5 mm (11.358 in)
0.3 mm (0.012 in)
2-6