1988-1991 Yamaha Sno Scoot SV 80/E Snowmobile Service Manual, Page 87Get this manual
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-CYLINDER AND CYLINDER HEAD
Cylinder head
USE NEW ONE
18 Nm (1.8 m-kg, 13 ft-Ib)
CYLINDER BORE SIZE: 49.00 49.02 mm (1.929 1.930 in) WEAR LIMIT49.1 111m (1