2008 Arctic Cat 366 ATV Service Manual, Page 30Get this manual
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Specifications VALVES AND GUIDES
5.000-5.015 mm (0.1969-0.1974 in (intake) 4.975-4.990 mm (0.1959-0.1965 in (exhaust) 4.955-4.970 mm (0.1951-0.1957 in (max) 0.05 mm (0.002 in (intake) 2.03 mm (0