Yamaha MBK MW125 2014 Service Manual page 33

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 tilt (intake)
Spring tilt (exhaust)
Winding direction (intake)
Winding direction (exhaust)
Cylinder
Bore
Taper limit
Out of round limit
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
Piston ring
Top ring
Ring type
End gap (installed)
Limit
Ring side clearance
Limit
2nd ring
Ring type
End gap (installed)
Limit
Ring side clearance
Limit
Oil ring
End gap (installed)
Crankshaft
Crank assembly width
Runout limit
Big end side clearance
ENGINE SPECIFICATIONS
33.75 mm (1.33 in)
33.40 mm (1.31 in)
33.75 mm (1.33 in)
33.40 mm (1.31 in)
26.80 mm (1.06 in)
26.80 mm (1.06 in)
132.20–152.20 N (13.48–15.52 kgf, 29.72–
34.21 lbf)
132.20–152.20 N (13.48–15.52 kgf, 29.72–
34.21 lbf)
1.5 mm (0.06 in)
1.5 mm (0.06 in)
Clockwise
Clockwise
52.400–52.425 mm (2.0630–2.0640 in)
0.050 mm (0.0020 in)
0.050 mm (0.0020 in)
0.03 mm (0.0012 in)
0.031–0.048 mm (0.0012–0.0019 in)
52.362–52.385 mm (2.0615–2.0624 in)
7.0 mm (0.28 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)
Barrel
0.07–0.17 mm (0.0028–0.0067 in)
0.42 mm (0.0165 in)
0.030–0.065 mm (0.0012–0.0026 in)
0.115 mm (0.0045 in)
Taper
0.35–0.50 mm (0.0138–0.0197 in)
0.85 mm (0.0335 in)
0.020–0.055 mm (0.0008–0.0022 in)
0.115 mm (0.0045 in)
0.20–0.70 mm (0.0079–0.0276 in)
45.45–45.50 mm (1.789–1.791 in)
0.030 mm (0.0012 in)
0.110–0.410 mm (0.0043–0.0161 in)
2-4