Have a 79' OMC engine...the boat has not been used in 2 years and am now pulling it off of someones hands to take a look at it. The trim/tilt does not seem to be working. When I push the trim/tilt switch a click happens in the back of the engine, appears to be on the solenoids...could this be a solenoid issue? It looks like there are 3 solenoids back there one for the up trim and one for the down? Am I correct on this anyone? How do I know if the solenoids are bad?... could use some help 