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|  Overheat alarm on Evinrude 
			
			Maybe one of you fellas can point me in the right direction before I spend any money or make something worse.  I'm getting an overheat alarm immeadiately upon start up with a cold engine.  The engine ran great last time a used her, about 1 1/2 months ago.  Went to crank her up in the driveway and am getting the alarm.   I'm getting plenty of psi on the gauge and a solid piss stream out the back.  I'm thinking maybe a bad connection or ground maybe?  The engine  is a 1990 Evinrude 225 looper.  Any advice is much appreciated.
		 
				__________________ 1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20 | 
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			#2  
			
			
			
			
			
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			There are two of these, on the rear right and left of the motor.  The picture is of one that has been spliced. The actual connection folds apart. Find each one of these, disconnect them and crank the motor. While running reconnect till the horn comes on, that will be the bad sensor. http://www.wellcraftv20.com/communit...ing+to+repairs If I'm not mistaken, it will start the horn without the engine on, just the key switch turned on. 
				__________________ '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny Last edited by tsubaki; 08-19-2008 at 03:37 PM. | 
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			#3  
			
			
			
			
			
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			I'll go try it now Thanks bro!
		 
				__________________ 1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20 | 
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			#4  
			
			
			
			
			
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			Well tsubaki I disconnected both of them and got the alarm still! She sounded a little rough so I shut her off. I hope it's nothing serious. 
				__________________ 1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20 | 
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			#5  
			
			
			
			
			
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			Now, if you do happen to find it to be one of the sensors, be sure and determine if it is acting up when cold or if it is after the engine has ran a while. If when cold, probably the sensor is bad. If after running a while, could be a stuck thermostat or blockage somewhere. If you have to change the sensor, do both of them and the thermostats also. 
				__________________ '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny | 
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			#6  
			
			
			
			
			
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			Is the oil injection gone completely? Try unhooking the fuel restriction sensor by the fuel pump, that can also trip the buzzer.
		 
				__________________ 2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 | 
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			#7  
			
			
			
			
			
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			Do you still have the oil injection system connected?
		 
				__________________ '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny | 
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			#8  
			
			
			
			
			
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			Does it matter that my tach is presently disconnected?
		 
				__________________ 1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20 | 
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			#9  
			
			
			
			
			
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			VRO disconnected, all premix
		 
				__________________ 1985 Wellcraft V-20, Evinrude ETEC 150: SOLD 1979 Marine Trader 44, twin Ford Lehman 120s 2006 Panga 14, Tohatsu 20 | 
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			#10  
			
			
			
			
			
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			FERM's right. All the horn, oil and sensor stuff is connected together and tripped by the ground. Any of these can be the culprit.
		 
				__________________ '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny Last edited by tsubaki; 08-19-2008 at 04:21 PM. | 
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