1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 122Get this manual
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INSPECTION AND REPAIR
Piston Ring 1 Measure: Side clearance Out of specificationReplace piston andor ringsUse the Feeler Gauge
Limit Ring Ring 0.02-0.06 (0.0008 0.0024 in)
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