1997 Johnson Evinrude "EU" 125C, 130, 200, 225, 250 90 LV Service Manual, P/N 507269, Page 101Get this manual
Vacuum Switch ServicingV4 Comm V6, Function Test
1All electrical connections should be complete and the engine's battery should be connected2Remove the vacuum switch hose from the fuel distribution manifold and connect vacuum tester to the hose
Avoid accidental starting of engine; twist and remove all spark plug leads
3Turn key switch to ON position
m 4Slowly, gaugea"CHECK ENGINE" light should turn onThe draw vacuum on the vacuum switch hoseas System Check
the vacuum approaches the switch's preset limitRefer to the chart below for your engine's limitModel 125WT Housing Color Gray or Black Gray Black Limit (inHg) 5112 '2
V6,va V6, va
5112 112
5If "CHECK ENGINE" light does not turn on, check warning system as described in Section 7, System Check Engine Monitor