1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, Page 79Get this manual
Warning Signals
INote Push
fuel hose off fuel fittingsdon't pullIf pushing won't separate hose and fitting, carefully cut the hose along its side and peel it back to avoid damaging the fittings"LOW OIL" Signal complete procedure for testing the "LOW OIL" circuit can Installation Recommendations, this sectionbe found in "NO OIL" Signal 1Connect shop tank with 50: fueloil mixture to the fuel inlet fitting2Carefully cut oil supply hose from the oil inlet fitting
3Start the engine and run at 1000 RPM in gear4After the residual oil is exhausted from the pump, the System Check gauge "NO OIL" light should turn on, and the warning horn should sound for ten seconds If the circuit does not activate within ten minutes, check for battery voltage at purple lead, connector terminal"D", when engine is running, and check the tachometer circuitRefer to Tachometer Circuit Check, Section If the circuit does not activate within ten minutes and there is battery voltage present at the pump, and the tachometer circuit is okay, check the warning system as described in Section 8, System Check Engine Monitor If battery voltage is present at the pump, the tachometer circuit is okay, and the warning system is okayrepair or replace the pump5Trim end of oil hose and secure it to the pumpDO NOT prime oil hoseRun engine at 1000 RPM to verify "NO OIL" signal disappears If "NO OIL" signal does not disappear, repair or replace the pump