Yamaha VK540EF, Service Manual

Page: 376 / 439

8-3
MAINTENANCE SPECIFICATIONS
SPEC
a
9E011
MAINTENANCE SPECIFICATIONS
ENGINE
Model VK540E
Cylinder head:
Volume (With spark plug)
<Warp limit> 30.2 30.8 cm
3
<0.03 mm (0.0012 in)>
Lines indicate straightedge measurement.
Cylinder:
Material
Bore size
<Taper limit>
<Out-of-round limit> Aluminum alloy with cast iron sleeve
73.00
73.02 mm (2.874 2.875 in)
<0.05 mm (0.0019 in)>
<0.01 mm (0.0004 in)>
Piston:
Piston size “D”
Measuring point 72.942 72.950 mm (2.871 2.872 in)
10 mm (0.39 in)
Piston to-cylinder clearance
<Limit>
Piston offset
Piston offset direction
Piston pin bore inside diameter 0.055 0.060 mm (0.0022 0.0024 in)
<0.1 mm (0.004 in)>
1.0 mm (0.039 in)
EX side
19.999
20.0065 mm (0.7874 0.7877 in)
Piston pin:
Piston pin outside diameter
Piston pin length 19.995 20.000 mm (0.7872 0.7874 in)
55.7 56.0 mm (2.193 2.205 in)
Piston ring:
Sectional sketch Top ring
2nd ring
End gap (installed): Top ring
2nd ring
Side clearance Top ring
2nd ring
Coating Top ring
2nd ring
Keystone
B = 1.2 mm (0.047 in)
T = 2.7 mm (0.106 in)
Keystone
B = 1.2 mm (0.047 in)
T = 2.7 mm (0.106 in)
0.20
0.40 mm (0.008 0.016 in)
0.20 0.40 mm (0.008 0.016 in)
0.02 0.06 mm (0.00079 0.0024 in)
0.02 0.06 mm (0.00079 0.0024 in)
Chrome Plated / parkerizing
Chrome Plated / parkerizing