1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 103Get this manual
Vacuum Switch ServicingV4 Comm V6, Function Test
1Reconnect any disconnected engine wiring and connect battery[] 2Disconnect vacuum switch hose from fuel line and connect to vacuum tester&
Avoid accidental starting of engine; twist and remove all spark plug leads3Turn key switch to ON position
[]] 4Draw vacuum on the vacuum switchThe System Check gauge "CHECK ENGINE" light should turn on at the switch preset vacuumRefer to chart for your switch operating vacuumModel 125WT V6, Housing Color Gray or Black Gray Black Vacuum (inHg) 5-6 6112-7112 5-6
5If "CHECK ENGINE" light does not turn on, check warning system as described in Section 7, OMC System Check Engine Monitor6If warning system is okay, replace vacuum switch