Yamaha 2010 XMAX YP125R Service Manual page 35

Camshaft runout limit
Timing chain
Tensioning system
Rocker arm/rocker arm shaft
Rocker arm inside diameter
Limit
Rocker arm shaft outside diameter
Limit
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)
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)
Limit
Valve margin thickness D (exhaust)
A
B
C
ENGINE SPECIFICATIONS (YP125R)
0.030 mm (0.0012 in)
Automatic
9.985–10.000 mm (0.3931–0.3937 in)
10.015 mm (0.3943 in)
9.966–9.976 mm (0.3924–0.3928 in)
9.940 mm (0.3913 in)
0.009–0.034 mm (0.0004–0.0013 in)
0.075 mm (0.0030 in)
0.10–0.14 mm (0.0039–0.0055 in)
0.22–0.26 mm (0.0087–0.0102 in)
19.40–19.60 mm (0.7638–0.7717 in)
16.90–17.10 mm (0.6654–0.6732 in)
1.680–2.120 mm (0.0661–0.0835 in)
1.480–2.190 mm (0.0583–0.0862 in)
0.90–1.10 mm (0.0354–0.0433 in)
1.6 mm (0.06 in)
0.90–1.10 mm (0.0354–0.0433 in)
1.6 mm (0.06 in)
0.85–1.15 mm (0.0335–0.0453 in)
0.5 mm (0.02 in)
0.85–1.15 mm (0.0335–0.0453 in)
2-4