Yamaha XV19SX(C) Service Manual page 32

Limit
B
Rocker arm/rocker arm shaft
Rocker arm inside diameter
Limit
Rocker arm shaft outside diameter
Rocker-arm-to-rocker-arm-shaft clearance
Limit
Valve, valve seat, valve guide
Valve clearance (cold)
Intake
Exhaust
Valve dimensions
Valve head diameter A (intake)
Valve head diameter A (exhaust)
A
Valve seat width C (intake)
Limit
Valve seat width C (exhaust)
Limit
Valve margin thickness D (intake)
Limit
Valve margin thickness D (exhaust)
Limit
Valve stem diameter (intake)
Limit
Valve stem diameter (exhaust)
Limit
Valve guide inside diameter (intake)
Limit
Valve guide inside diameter (exhaust)
A
C
D
2-5
ENGINE SPECIFICATIONS
35.850 mm (1.4114 in)
18.000–18.018 mm (0.7087–0.7094 in)
18.036 mm (0.7101 in)
17.976–17.991 mm (0.7077–0.7083 in)
0.009–0.042 mm (0.0004–0.0017 in)
0.080 mm (0.0032 in)
0.00–0.04 mm (0.0000–0.0016 in)
0.00–0.04 mm (0.0000–0.0016 in)
35.90–36.10 mm (1.4134–1.4213 in)
30.90–31.10 mm (1.2165–1.2244 in)
1.10–1.30 mm (0.0433–0.0512 in)
2.0 mm (0.08 in)
1.10–1.30 mm (0.0433–0.0512 in)
2.0 mm (0.08 in)
1.15–1.45 mm (0.0453–0.0571 in)
0.4 mm (0.02 in)
1.15–1.45 mm (0.0453–0.0571 in)
0.4 mm (0.02 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)
5.920 mm (0.2331 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)