2004 SR Johnson 2-stroke 40, 50HP Service Manual, Page 126Get this manual
IGNITION S.L.O.WARNING SYSTEM TESTS
S.L.OWARNING SYSTEM TESTS
This ignition system incorporates the S.L.oWTM warning system, which gradually limits engine speed to approximately 2500 RPM when engine temperature exceeds 240F (116C)To resume normal operation after the S.L0Wwarning system has activated, the engine must cool to 20rF (97C) and be set to IDLEThe S.L.oWwarning system depends on input from the temperature switch tanblue leadRefer to WATER TEMPERATURE SWITCH TEST on p.99Q)
Fu netion Test
STEP Disconnect temperature switch tanblue lead
STEP Attach ohmmeter leads to terminals "c" and "D If meter shows 400 40 ohms, replace power pack If your test results are different, replace the stator