Yamaha XV19SX(C), Service Manual

Page: 32 / 494

ENGINE SPECIFICATIONS
2-5
Limit 35.850 mm (1.4114 in)
Rocker arm/rocker arm shaft
Rocker arm inside diameter 18.000–18.018 mm (0.7087–0.7094 in)
Limit 18.036 mm (0.7101 in)
Rocker arm shaft outside diameter 17.976–17.991 mm (0.7077–0.7083 in)
Rocker-arm-to-rocker-arm-shaft clearance 0.009–0.042 mm (0.0004–0.0017 in)
Limit 0.080 mm (0.0032 in)
Valve, valve seat, valve guide
Valve clearance (cold)
Intake 0.00–0.04 mm (0.0000–0.0016 in)
Exhaust 0.00–0.04 mm (0.0000–0.0016 in)
Valve dimensions
Valve head diameter A (intake) 35.90–36.10 mm (1.4134–1.4213 in)
Valve head diameter A (exhaust) 30.90–31.10 mm (1.2165–1.2244 in)
Valve seat width C (intake) 1.10–1.30 mm (0.0433–0.0512 in)
Limit 2.0 mm (0.08 in)
Valve seat width C (exhaust) 1.10–1.30 mm (0.0433–0.0512 in)
Limit 2.0 mm (0.08 in)
Valve margin thickness D (intake) 1.15–1.45 mm (0.0453–0.0571 in)
Limit 0.4 mm (0.02 in)
Valve margin thickness D (exhaust) 1.15–1.45 mm (0.0453–0.0571 in)
Limit 0.4 mm (0.02 in)
Valve stem diameter (intake) 5.975–5.990 mm (0.2352–0.2358 in)
Limit 5.945 mm (0.2341 in)
Valve stem diameter (exhaust) 5.960–5.975 mm (0.2346–0.2352 in)
Limit 5.920 mm (0.2331 in)
Valve guide inside diameter (intake) 6.000–6.012 mm (0.2362–0.2367 in)
Limit 6.050 mm (0.2382 in)
Valve guide inside diameter (exhaust) 6.000–6.012 mm (0.2362–0.2367 in)
A
B
A
C
D