Have a 1990 evinrude 60 with vro. Was fine last season, first time out this year the warning horn goes off as soon as it is started. Only does it at an idle. I traced the wires, did not find the brown wire grounded. I took the high temp and low oil out of system it made no difference. The brown wire goes to a three wire loom to the front of the engine, took it out of system and horn quit.What does that loom go to? The other two wires are grey and black and go to strip on right of engine. Is there a problem with the engine or is it still a wire problem.Don't want to run engine until i know.Engine is pushing out water and is smoking a little so i think water pump and oil system is ok.What do you think?