1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 87Get this manual
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INSPECTION and REPAIR
0.035 -0.040 mm (0.0014 0.0016 in) Limit: 0.1 mm (0.004 in)
PISTON RINGS 1 Measure: Side clearance Out of specification - Replace piston and or ringsUse Feeler