Yamaha YZF-R1B 2012 Service Manual page 45

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Timing chain
Tensioning system
Valve, valve seat, valve guide
Valve clearance (cold)
Intake
Exhaust
Valve dimensions
Valve head diameter A (intake)
Valve head diameter A (exhaust)
Valve face width B (intake)
Valve face width B (exhaust)
Valve seat width C (intake)
Limit
Valve seat width C (exhaust)
Limit
Valve margin thickness D (intake)
Valve margin thickness D (exhaust)
Valve stem diameter (intake)
Limit
Valve stem diameter (exhaust)
Limit
Valve guide inside diameter (intake)
Limit
Valve guide inside diameter (exhaust)
Limit
Valve-stem-to-valve-guide clearance (intake)
Limit
Valve-stem-to-valve-guide clearance (exhaust)
Limit
Valve stem runout limit
email: info@motomatrix.co.uk
ENGINE SPECIFICATIONS
Automatic
0.11–0.20 mm (0.0043–0.0079 in)
0.23–0.27 mm (0.0091–0.0106 in)
30.90–31.10 mm (1.2165–1.2244 in)
24.90–25.10 mm (0.9803–0.9882 in)
1.200–2.475 mm (0.0472–0.0974 in)
1.625–2.900 mm (0.0640–0.1142 in)
0.90–1.10 mm (0.0354–0.0433 in)
1.60 mm (0.06 in)
1.10–1.30 mm (0.0433–0.0512 in)
1.80 mm (0.07 in)
1.35–1.75 mm (0.0532–0.0689 in)
0.50–0.90 mm (0.0197–0.0354 in)
4.975–4.990 mm (0.1959–0.1965 in)
4.960 mm (0.1953 in)
4.460–4.475 mm (0.1756–0.1762 in)
4.425 mm (0.1742 in)
5.000–5.012 mm (0.1969–0.1973 in)
5.050 mm (0.1988 in)
4.500–4.512 mm (0.1772–0.1776 in)
4.550 mm (0.1791 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)
2-4