1977 Evinrude 9.9-15 HP Outboard Motor Service Repair Manual P/N 5305, Page 61Get this manual

1977 Evinrude 9.9-15 HP Outboard Motor Service Repair Manual P/N 5305, Page 61

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WORN RING GROOVES

Figure 5-25 Piston and Ring Condition fLower and upper crankcase seal and should replaced""

Figure 5- 27 Check Piston Skirts for Roundness ring reBefore ins

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