1997 Johnson Evinrude "EU" 125C, 130, 200, 225, 250 90 LV Service Manual, P/N 507269, Page 112Get this manual
]] 3Press lightly on the syringe plunger: Fluid should move freely through fitting If fluid does not move freely through fittingreplace the inline check valve]] 4Move the vinyl hose to fitting Press lightly on the syringe plunger: Fluid should not move freely through fitting If fluid moves freely through fittingreplace the inline check valveFunction Test at CrankcaseAll Models
[] 1Connect an 1a in1.0clear vinyl hose between the check valve and syringe filled with isopropyl alcoholThe fitting does not have to be removed from the crankcase for this test2Press lightly on the syringe plunger: Fluid should not move freely through the fitting If fluid moves freely through the fitting, replace the fitting3Draw out on the syringe plunger: Air should be drawn through the fitting into the clear hose If air cannot be drawn through the fitting, replace the fittingFunction Test at Internal Check ValveV6