How to fix the buzzing

[livemusic]

EDIT: 2:  See my 2nd post below. Seems to be the bilge pump.

 

EDIT:  It's not the bilge or livewell pump, it's rear of the stern... it's the motor... or... I forgot there is a Talon stick anchor back there. But I activated the Talon and it doesn't make the sound this is making. I think it is the lift. But once, I figure out what it is, what would one do about this? Any idea why the lift would 'want' to activate?

 

There is also a jackplate lift; I could not get it to raise/lower. Unsure if it needs the switchbank on, but I did turn it on to try. I've not used the jackplate lift in couple of years.

 

=

 

Yamaha 115hp Vmax SHO... boat is less than 5 years old. I fished yesterday, first day after winter storage. Everything fine but now with boat on trailer, I keep hearing a buzzing sound. It seems to be the hydraulic lift that tilts the motor. It comes off and on and makes this sound for 20-30 seconds. THEN IT'S OFF FOR SEVERAL TO MANY MINUTES. I dunno what it is other than that but it's possible it's a bilge pump? I have hearing loss, kind of hard for me to tell what it is or where it's coming from.

 

I first noticed it last night and I poked around on the lift button and it went away and I thought that was it but this morning, it's still doing it, so, it might have done it all night! It's like it's trying to activate something, not necessarily a buzz. I also have pumps into the live wells but it sounds like it's in the back of the boat.

 

Cranking motor has good charge. I ran down the trolling motors batteries pretty good, they may be at EOL. But I am not sure there is anything on the trolling batteries other than the trolling motor. Bought boat 2nd hand 3 years ago.

[TnRiver46]

Easy thing to try would be unhook everything off the crank batt then hook it back up 

[casts_by_fly]

did you accidentally put something like a boat cover or a trolling motor footpad on one of the tilt/trim switches in either the console or the bow and its stuck 'on'?

[GaryH]

Process of elimination. First make sure all your switches are turned off. Then start disconnecting either your fuses or wires one at a time till you find the issue.

[WRB]

If your hydraulic jack plate isn’t working start there! Sounds like you have a defective relay.

Tom

PS a wooden dowel about 12” long makes a good hearing aid by pulling one end on the spot you think the sound coming from the other end next to you ear.

[livemusic]

I found the culprit -- bilge pump. It didn't make sense to me that during the sound, I could activate the lift with the manual switch. If something is calling the lift, why wouldn't it go up or down was my thought. So... I felt of the bilge pumps and one is vibrating during the buzz, so, I assume that it is that motor. Anyone have an idea why this would be occurring with the bilge pump? Do they do this when they are failing?

 

There isn't any water in the boat. Well, very, very little. Almost none.

 

Sidenote... there are several wires hooked up to the cranking battery. I happened to look into that mess and saw a loose wire that was not connected. However, it was not the bilge pump wire. I found the bilge pump wire and disconnected it. The unconnected wire, now connected, I will have to figure out what that is. Maybe it is the jackplate. I will go see. (Boat is next door.)

[looking45]

Is it an automatic bilge pump? If so, the float could be stuck 

[TnRiver46]

Glad ya found it! 

[WRB]

Probably the livewell pump was accidentally turn on.

Tom