Trim/Tilt Not working

[fishintyme]

Hello everyone. I have done a search on this topic and could not find an answer or similar problem. My friend has a 2001 70hp Yamaha and the power trim/tilt quit working. Two weeks ago we did our regular check list before leaving the hosue for a day of fishing. When I lifted the engine it started out slow and weak but started to work fine after that. Last week when I went to check it before leaving the house the motor did not tilt. All I kept getting was a knocking/clicking sound from the trim/tilt motor. I've been told by a local marina that it is very rare to see the trim/tilt motor go bad in 5 years. He said most of the time it's just an electrical problem such as corrosion on the inside or a bad relay. Is there any truth in what he is telling me ? This boat is used in saltwater. Thanks in advance for any information.

 

[Ray Neudecker]

Re: Trim/Tilt Not working

A lot of truth in what he is saying. To start trouble shooting, disconnect the blue and green wires running from the relay to the trim motor. Jumper direct from a battery postive to the blue and negative to the green. You can reverse the leads to test the down. If all works fine then check the relay and connections.

 

[fishintyme]

Re: Trim/Tilt Not working

Thanks Ray. I wasn't to sure about what he had said and no one else I talked to had mentioned anything about that. Going to check it out this morning

 

[bolted4]

Re: Trim/Tilt Not working

I have same problem on a 1986 90hp. before I blow something up I want to verify wiring. Three wires, green, Blue, and a black wire. You're saying put Blue to neg. on battery and green to pos. on battery. Switch to change direction. Do I remove blue and green wire from the terminals first?
Also there seems to be two relays, is that correct?
Do nothing with black wire black?
Thanks

 

[Ray Neudecker]

Re: Trim/Tilt Not working

The older model is wire different. One wire (negative to ground is black) and one (postive to the blue for up or the green for down)

 

[bolted4]

Re: Trim/Tilt Not working

Thanks for reply, I am a bit confused in understanding how the trim motor works. I have the two relays, blue to one, green to second, black to ground on both. If I take a voltmeter and push up button I get a positive voltage on both green and blue wires, same with down button. Is that right? I guess I am thinking of your standard motor where your just reverse the two wires. But this cant be. I have this feeling it is the trim motor that is bad but I would like to confirm before.

 

[licketdsplit756]

Re: Trim/Tilt Not working

you can also pull the relays out and jump it there. that is how i found out if the motor worked. get ya a short piece of 14 gauge wire..should do the trick

 

[Ray Neudecker]

Re: Trim/Tilt Not working

No that is not right bolted4. Test the motor first and then find out about the trim wiring. You may have a shorted trim switch in the system. Often the problem where add on switches have been used or older units from corrosion.

 

[bolted4]

Re: Trim/Tilt Not working

Ok thanks, I took the wires off and the relays work corrrectly, so the motor must be shorted (all wireing is origonal). I tried putting positive to blue and green separately but nothing happens.

Here is next question. I want to replace trim motor. I have boat motor half way up. (were it died finally) The manual over ride screw is "froze" in so I can lift motor farther to access trim motor. How can I lift motor farther without causing more issues?

Thanks again guys for your help in finding a place to sink more money in my boat!

 

[Ray Neudecker]

Re: Trim/Tilt Not working

Lifting it higher won't help. at least one clamp bracket will have to come off to get to the motor bolt on one corner.