1992 Johnson 100 GT Constant Alarm

Fairbankslaker

Recruit
Joined
Jun 2, 2010
Messages
1
I have a 100 HP Johnson GT that has a continuous alarm that comes and goes. After reading the manual, I don't believe I have a fuel alarm, just head temp and low oil alarms. It is intermittent, but seems to involve my fuel hose connection to the motor... is my manual wrong...changed the VRO oil pump, no change, disconnected the temp sensors, no change.... lots of oil, heads run cool, water pump seems fine. Anyone got any ideas??
 

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
Re: 1992 Johnson 100 GT Constant Alarm

There should be three distinct alarms on that engine-check your owner's manual. Overheat, fuel/oil pump and low oil sensor alarm. For some reason when my oil tank gets low on my 1992, it sets off the overheat alarm-not correct. Agree with Sparkie, you could have a bad sensor, or the horn itself could be bad.
 
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