1994 Yamaha Pro 60 Trim Problem- In Water-

stogie5150 · Jan 9, 2005

I have a 1994 Pro 60 that will not trim down when the boat is in the water. The relay clicks when you push either of the down switches, but it will not go down. Up works fine. Put the boat on the trailer, trim will work either way all day and all night.

Short inside the trim motor? There is a tiny bit of corrosion around the mounting bolts of the motor. I am not familiar with O/B trim systems at all. I did a little work with Mercriuser trim stuff then I was a teenager, but O/B stuff...

Is there a geneal consensus on the best manual for this motor? I am not afraid to tackle this on my own, IF I have the manual. Thanks y'all. Keith

WillyBWright · Jan 9, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Welcome to iboats. I'm leaning towards a corroded connection or a broken wire. I'm guessing that once the motor is down (trimmed down for operation), the connection breaks. Tilted up further (trimmed up for trailering) and the ends touch again. Otherwise I haven't a clue. One free and easy thing to try is to swap relays. If the problem is now with the Up instead of the Down, replace the relays (as a pair is best). Not sure about those but with some it can be the other relay than you think is bad due to the way it's wired. But if one relay has failed, the other may follow soon. That's why you should replace both rather than one. That gives you a good spare too. Now if the trim motor runs but the motor doesn't move, then it's hydraulics. Now it gets complicated. That situation might best be left to a dealer. As far as a manual to follow, try to order a factory manual. Maybe a dealer would photocopy that section for you. I'm not sure if the trim system is well covered in the aftermarket manuals.

stogie5150 · Jan 10, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Thanks for the welcome. I've lurked here for awhile but never had a reason to post. I've been around boats and motors all my life (I'm 34). I think I drove a boat before I could walk well..LOL Would the relay still click but not start the motor? Because when its in the water I still hear the click (of what I assume is the relay). I too am leaning toward a broken wire inside the motor, but I need some guidance taking the dang thing apart. I can see where the wire goes inside the motor, but am unsure whether its shorted inside the motor housing or between the motor and the controls. Where are the relays? Under the motor cover? The trim motor does not run when in the water when I push the DOWN button, just the UP works , all I hear is the solid CLICK when I push the DOWN button. The UP works anytime, in water or out. Take it out of the water, works normally both ways. I am almost SURE its in the motor housing itself, otherwise why would it run out of the water but not in the water. The only difference is that the trim motor is submerged, that's what. Am I totally out of my mind thinking this? Keith

Ray Neudecker · Jan 10, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

The motor is a two wire motor, which means the polarity reverses to activate the trim up and down. A problem with the motor not running one direction is normally associated with a problem in the relay system itself. My manual doesn't show a Pro 60, so I am not sure whether you have a box with two relays mounted in it or rwo relays mounted seperately. The first place to check would be the ground connections to the relays.A loose ground there can cause the problem.

stogie5150 · Jan 10, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

IIRC the only difference the Pro 60 has is a different gearcase than the rest of the motors in the same horsepower class. But obviously I could be wrong... So where are the relays? Inside the motor cover? I just looked at the motor itself, and yes, there are two wires going to the motor, one green and one blue. Would the trim motor being submerged (i.e. the boat in the water) cause enough resistance at the relay to cause the motor not to work? The wire mounting points on the motor look good from what I can see, no corrosion on them. the motor itself has a little rust on the very top of it too. If I remove the two bolts holding the motor on, does it just lift off? Should I be prepared to get hydraulic oil everyhere? Sorry for being so darn obtuse but I do not wanna mess anything up. Keith

stogie5150 · Jan 10, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Okay, after looking further at what you wrote, it makes sense. The polarity is switched at the relay box. So if the motor runs in the up direction it should run in the downward direction, given the polarity switch at the relay. So out I go to check the ground as you suggested, is there a check for the relays or is it just a replace and see if it works thing? Thank you very much, Keith

stogie5150 · Jan 10, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Alright. I swapped the blue and green wires, and when I pressed the DOWN switch nothing happened, just a click. When I pressed the UP switch, the motor went DOWN. Bad relay box, no? Puppies are CHEAP, too...101 bucks

Ray Neudecker · Jan 11, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Does indicate a relay box problem. If it is the enclosed box, open it and be sure you don't have an internal to the box connection problem where the wires plug to the relay. If so fix the connection, otherwise buy a box. I have found that most of the problems when the box is defective are associated with problems due to defective or intermittent switches added to the trim system such as the bow switch on bass boats. If this is the case, it can happen again. Unless they are actually used regularly, disconnect them. If used regularly, replace with high quality sealed switches.

stogie5150 · Jan 11, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Thanks Ray. The only switches are the factory switch in the throttle handle and the switch on the motor housing. I only use the boat maybe 10 times a year, but it is kept garaged when I am not using it. Actually yesterday I got it to fail on the trailer. When I was in the process of removing the box it failed. I tried to bend all the wires around to see if I could make it work...no dice. I will open the box and check all the connections before I go get a new one, and report back with what I see. Thanks again Ray you're the greatest!!! Keith

stogie5150 · Jan 11, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

Opened the box, the little wiring harness wires were potted in, so when I pryed off the lid, snap snap went the wires. Once I opened it there wasn't much to see, just a couple cylindrical contacts ( I assume thats what they were..). So off to the local Yammie dealer to get my 110.00 relay. Put it on, and then spent my afternoon bass fishing. So far so good. But only caught one fish though. Thanks again Ray you saved me a LOT of money. Keith

Ray Neudecker · Jan 11, 2005

Re: 1994 Yamaha Pro 60 Trim Problem- In Water-

You are very welcome. Good luck with the fishing.

1994 Yamaha Pro 60 Trim Problem- In Water-

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