1968 Evinrude Big Twin, Lark 40 HP Outboards Service Repair Manual P/N 4483, Page 67Get this manual

1968 Evinrude Big Twin, Lark 40 HP Outboards Service Repair Manual P/N 4483, Page 67

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Fig 6-36 Checking Parallelism

i Inspect water tubes for stutis 01' which stit wt" flowjIst

water il11peller if vanes or worn excessi velyIst l11 101ISig for sig and replace i