Yamaha 25BMH 30HMH Factory Service Manual, Page 82Get this manual

Yamaha 25BMH 30HMH Factory Service Manual, Page 82

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SPEC POWER UNIT

Piston-cylinder clearance Limit Oversize piston diameter PISTON PINS Outside diameter PISTON RING (1st) Type (B) (T) End gap (installed) Limit Side clearance Limit 1st 2nd