1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Repair Manual, P/N 520210, Page 76Get this manual

1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Repair Manual, P/N 520210, Page 76

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VRO Pump Disassembly
piston carefully to avoid denting piston seal

7 Remove the stem from either pistonSet the air motor piston asideDiscard the stem and steel washersSet the nylon