Yamaha 2005 MT-01, Service Manual

Page: 30 / 435

ENGINE SPECIFICATIONS
2-4
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) 33.90–34.10 mm (1.3346–1.3425 in)
Valve head diameter A (exhaust) 27.90–28.10 mm (1.0984–1.1063 in)
Valve face width B (intake) 1.300–2.300 mm (0.0512–0.0906 in)
Valve face width B (exhaust) 1.200–2.400 mm (0.0472–0.0945 in)
Valve seat width C (intake) 0.90–1.10 mm (0.0354–0.0433 in)
Limit 2.0 mm (0.08 in)
Valve seat width C (exhaust) 0.90–1.10 mm (0.0354–0.0433 in)
Limit 2.0 mm (0.08 in)
Valve margin thickness D (intake) 0.70–1.30 mm (0.0276–0.0512 in)
Limit 0.4 mm (0.02 in)
Valve margin thickness D (exhaust) 0.70–1.30 mm (0.0276–0.0512 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 5.930 mm (0.2335 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)
Limit 6.050 mm (0.2382 in)
A
B
C
D