1988 Johnson Evinrude CC 60 thru 75 outboards Service Repair Manual P/N: 507662, Page 233Get this manual

1988 Johnson Evinrude CC 60 thru 75 outboards Service Repair Manual P/N: 507662, Page 233

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Screw in vacuum testerPump out to 3-6 in(76-127 m) of mercury and see if vacuum holdsThen pump out to 15 in (381 mm) of mercury and checkIf the gearcase fails to hold either test, put lubricant around