1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 255Get this manual

1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 255

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1561 35 Pressue and vacuum test the gearcase as follows:
Hold down firmly the driveshaft and pump pressue up to 3-6 PSI (21-41 kPa)If pressue gauge indicates leakage, submerge the gearcase in wa

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