I am experiencing a chronic overheat warning alarm for my 1990 Johnson 70 hp. The imeller has been replaced, the head gasket has been replaced, the VRO has been removed to allow me to use premix. and a temp guage has been installed. The engine seems to operate well at below 3800 rpm I am...
Impeller replaced, good discharge (not very hot to touch); replaced head gaskets; removed VRO (one less thing to go wrong); installed temp guage mounted to one of the cylinder head bolts (reads in C and F) The overheat warning alarm goes on about 176F. I've looked at a couple manuals and I...
I have a 1990 Johnson 70 hp. I have been having trouble with the overheat warning and shutdown. <br />At the suggestion of my mechanic and in order to remove potential problems I took off <br />the vro auto oiling feature and I am now premixing the gas and oil 50:1; I've replaced <br />the...
