1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 102Get this manual

1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 102

The hydraulic pump mounted in the forward end of the gear case and driven by the forward gear utilizes the gear case lubricating oil to supply the force for shiftingThe shift rod controls the assist
cylinder valve which directs the hydraulic force to assist in placing the clutch dog in the selected positionsSee Figures 6-4, 6-5 and 6-6
FORWARD GEAR

12345678Clutch dog Propeller rotates clockwise Driveshaft rotates clockwise Piston down Push rod down Plunger forward Shift rod Forward gear