2008 Yamaha 50tlr Trim/Tilt Working Intermittently

[sshorter]

I have a 2008 Yamaha 50tlr. I have been having a problem finding the cause of my trim intermittently. Basically sometimes it works sometimes it does not. The steps I have taken so far are below:

1. Verified the trim motor was working by hooking 12v straight to the green and blue wires.
2. I then proceeded to order a cheap amazon relay. I got it in and installed it. It seemed to be doing good for about 3 uses, then stopped working again. So I wrote it off as a cheap part gone bad. I ordered a genuine Yamaha relay and swapped it. It is still having the same problem.
3. The relay is getting signal from both switches, you can hear it clicking.
4. I am fixing to pull apart the harness near the relay to see if I can locate a bad spot in the wiring.

Any advice at what to look at next?

 

[99yam40]

if you can hear the relay operating when you hit each switch, then you are left with a bad battery cable or just a connection on either end of the + or - cable

 

[sshorter]

if you can hear the relay operating when you hit each switch, then you are left with a bad battery cable or just a connection on either end of the + or - cable

Thanks I will give that a look! I know the relay is getting ~12.6 volts when I was putting a multimeter to it.

 

[boscoe99]

Thanks I will give that a look! I know the relay is getting ~12.6 volts when I was putting a multimeter to it.

Is the pump motor on the T and T unit getting ~12.6 volts when the relay is activated?

Voltage without current flow is meaningless.

 

[cyclops222]

Clicking relays can have burned away contacts. Measure the switched voltages.

 

[99yam40]

Clicking relays can have burned away contacts. Measure the switched voltages.

seems like he has replaced the relay twice,
if you care to read what he wrote

 

[cyclops222]

I do have bad times.

 

[cyclops222]

Check the relay socket metal parts in each socket space. They can overheat and cause erratic operation. Flashlight and a magnifying lens are very useful for looking.

 

[99yam40]

Check the relay socket metal parts in each socket space. They can overheat and cause erratic operation. Flashlight and a magnifying lens are very useful for looking.

I do not think there are any sockets for a relay to plug into.
all are hard wired on these outboards

 

[boscoe99]

Check the relay socket metal parts in each socket space. They can overheat and cause erratic operation. Flashlight and a magnifying lens are very useful for looking.

You might be confusing the relay assembly used on the OP's motor with say a Mercury model that uses separate Bosch style relays.

Here is a photo of the OP's relay assembly.

 

[cyclops222]

Did not trust any of the links. Too many to decide which one to use.

 

[cyclops222]

Did not trust any of the links. Too many to decide which one to use. See the relay now.

 

[sshorter]

Thanks for the replies everyone! I am going to look at doing some more diagnostics today. I will report back the findings.