1991-1993 Yamaha Exciter II-570 Service Manual, Page 338Get this manual

1991-1993 Yamaha Exciter II-570 Service Manual, Page 338

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INSPECTION AND REPAIR CRANKCASE
1 Pull back the rubber cover (j) of the oil pump cable2 Remove: Oil pump cover 3 Wipe off the grease from the plunger top
4 Measure: Minimum pump stroke Out