Yamaha N MAX GPD150-A 2015 Service Manual page 51

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
Valve spring
Free length (intake)
Limit
Free length (exhaust)
Limit
Installed length (intake)
Installed length (exhaust)
Installed compression spring force (intake)
Installed compression spring force (exhaust)
Spring rate K1 (intake)
Spring rate K2 (intake)
Spring rate K1 (exhaust)
Spring rate K2 (exhaust)
Spring tilt (intake)
Spring tilt (exhaust)
Winding direction (intake)
Winding direction (exhaust)
Cylinder
Bore
Taper limit
Out of round limit
Measuring point H
Warp limit
Piston
Piston-to-cylinder clearance
Diameter
Measuring point (from piston skirt bottom)
Piston pin bore inside diameter
Limit
Piston pin outside diameter
Limit
Piston-pin-to-piston-pin-bore clearance
ENGINE SPECIFICATIONS
4.975–4.990 mm (0.1959–0.1965 in)
4.920 mm (0.1937 in)
4.960–4.975 mm (0.1953–0.1959 in)
4.925 mm (0.1939 in)
5.000–5.012 mm (0.1969–0.1973 in)
5.050 mm (0.1988 in)
5.000–5.012 mm (0.1969–0.1973 in)
5.050 mm (0.1988 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)
0.110 mm (0.0043 in)
0.010 mm (0.0004 in)
33.79 mm (1.33 in)
32.10 mm (1.26 in)
33.80 mm (1.33 in)
32.06 mm (1.26 in)
28.90 mm (1.14 in)
28.90 mm (1.14 in)
139.50–160.50 N (14.22–16.37 kgf, 31.36–
36.08 lbf)
139.50–160.50 N (14.22–16.37 kgf, 31.36–
36.08 lbf)
30.67 N/mm (3.13 kgf/mm, 175.13 lbf/in)
49.28 N/mm (5.03 kgf/mm, 281.39 lbf/in)
30.62 N/mm (3.12 kgf/mm, 174.84 lbf/in)
39.71 N/mm (4.05 kgf/mm, 226.74 lbf/in)
1.5 mm (0.06 in)
1.5 mm (0.06 in)
Clockwise
Clockwise
58.000–58.010 mm (2.2835–2.2839 in)
0.050 mm (0.0020 in)
0.050 mm (0.0020 in)
20.0–40.0 mm (0.79–1.57 in)
0.03 mm (0.0012 in)
0.015–0.048 mm (0.0006–0.0019 in)
57.962–57.985 mm (2.2820–2.2829 in)
6.0 mm (0.24 in)
14.002–14.013 mm (0.5513–0.5517 in)
14.043 mm (0.5529 in)
13.995–14.000 mm (0.5510–0.5512 in)
13.975 mm (0.5502 in)
0.002–0.018 mm (0.0001–0.0007 in)
2-4