Yamaha e60hmhd - Chapter 1 Chapter 2; Power Unit; Maintenance Specifications

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MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
POWER UNIT
Unit
Model
Item Worldwide E60HMHD E60HWHD E60HWD
USA, Canada E60MH E60EH —
CYLINDER HEAD
Warpage limit mm (in) 0.1 (0.004)
CYLINDERS
Bore size mm (in) 72.00 - 72.02 (2.8346 - 2.8354)
Wear limit mm (in) 72.10 (2.8386)
Taper limit
mm (in) 0.08 (0.003)
Out-of-round limit mm (in) 0.05 (0.002)
PISTON
Piston diameter (D) mm (in) 71.940 - 71.965 (2.8323 - 2.8333)
Measuring point (H) mm (in) 10 (0.4)
Piston-cylinder clearance mm (in) 0.055 - 0.060 (0.0022 - 0.0024)
<Limit> mm (in) 0.11 (0.0043)
Pin boss inside diameter mm (in) 19.904 - 19.915 (0.7839 - 0.7841)
Ring groove side clearance
(installed) mm (in)
Top mm (in) 0.03 - 0.07 (0.001 - 0.003)
2nd mm (in) 0.03 - 0.07 (0.001 - 0.003)
Over size piston Diameter
Top (Except for USA) mm (in) 72.25 (2.844)
2nd mm (in) 72.50 (2.854)
PISTON PIN
Diameter (D) mm (in) 19.895 - 19.900 (0.7833 - 0.7835)
PISTON RING (1ST)
Type Keystone
Dimensions (BxT) mm (in) 2.0 x 3.0 (0.08 x 0.12)
End gap (installed) mm (in) 0.30 x 0.50 (0.012 x 0.020)
<limit> mm (in)
0.70 (0.028)
PISTON RING (2nd)
Type Keystone
Dimensions (B x T) mm (in) 2.0 x 3.0 (0.08 x 0.12)
End gap (installed) mm (in) 0.30 x 0.50 (0.012 x 0.020)
<limit> mm (in)
0.70 (0.028)
2-3