Good point on rubber hose. Never replaced. Have also read about back flushing from thermostat housing. Good advice I will follow when weather allows!
The "little rubber hose" is actually a service item......just like th pump. It gets hardened over time and, when it gets hard, it won't allow
Check the neutral safety switch and here's a diagram http://www.maxrules.com/oldmercs/Wiring/1966ona/30.gif
When trolling motor is set to #3 on the power level 1 through 10 being options graph show screen interference. The desired power level for bottom watching
I will give that a try. Thank you. I just can't figure out the mechanism for the part sticking up.