2002-2009 Suzuki LT-F250 Ozark Service Manual, Page 73Get this manual
PISTON RING TO GROOVE CLEARANCE Using thickness gauge, measure the side clearances of the 1st and 2nd ringsIf any of the clearances exceeds the limit, replace both piston and piston ringsPiston ring to groove clearance Service Limit (1st)0.18 mm (0.0071 in) (2nd): 0.15 mm (0.0059 in) Piston ring groove width Standard (1st)1.01 1.03 mm (0.0398 0.0406 in) (2nd): 1.21 1.23 mm (0.0476 0.0484 in) (Oil)2.01 2.03 mm (0.0791 0.0799 in) Piston ring thickness Standard (1st)0.97 0.99 mm (0.038 0.039 in) (2nd): 1.17 1.19 mm (0.046 0.047 in) 09900-20803: Thickness gauge 09900-20205: Micrometer (0 25 mm)