Good ol 25 horse mariner "help"

[Fordsnfishin]

Hello, new here. Been using this site for alot of information and decided to join since I've been having issues lately.

For some insight I've owned this boat for 8 years now, and restored the boat 3 years back. It's a 14 foot extra deep/wide Jon boat with a 25 horse mariner on back.

At the end of last season while on the water my starter seem to have gave out on me. So I finally just now got it out of storage, to my new house, and am trying to get it fixed.

The motor is a mariner 28e 664 s 271316.

From what I've read I think that it was made in 1979?

Now from digging around on here I think I have it narrowed down to the starter solenoid. Reason being, when hitting the start button the flywheel doesn't rotate and I do not hear the solenoid engage. Further investigation I do not find 12v to the little terminal on the solenoid. (I do have 12v on the feed coming to it from the battery. ) Does that all sound correct?

If so, it looks like the solenoid is the problem.

Now, I have the starter pulled and went to remove the bottom cap (solenoid), but it appears to have a black wire running through it that was attached to the other terminal post (negative) along with one that came from the starter itself.

So what would be the proper way to remove the solenoid?

I've been searching the net to find a new solenoid but have had a hard time trying to find the right one. Can anyone point me to where I could find one?

All help is appreciated! I'll see if I can't get some photos up as well.

 

[Fordsnfishin]

Of course having trouble loading photos. If any info you need to know to help I'd be glad to get to you asap

 

[Fordsnfishin]

Word of the wise ! If anyone feels the need to remove the cap of the starter off, please refrain from doing so! Total pain in the ass to get the brushes back on to the shaft once you pull that cap off! Learn from my mistakes lol

 

[flyingscott]

Ok slow down a little. You should not have 12 volts to the little terminals unless the the key is turned to the start position. If you do not have 12 volts to the little terminal with the switch in the start position I would check you ignition switch. Have you checked the neutral safety switch. Is it a tiller or controls.

 

[Fordsnfishin]

Ok slow down a little. You should not have 12 volts to the little terminals unless the the key is turned to the start position. If you do not have 12 volts to the little terminal with the switch in the start position I would check you ignition switch. Have you checked the neutral safety switch. Is it a tiller or controls.

Correct, I do not have power to the terminal with the start button pushed in.

This is a old engine, so no electric tilt or anything. Just a standard outboard engine.

I checked the ignition button, and it ohms out as should. And the kill switch ohms out as well.

As for the neutral safety switch? I'm not sure it has that

 

[Fordsnfishin]

The kill switch and your neutral switch might be the same thing? It has two wires that eventually run to what I believe are coil packs? Whatever the spark plug leads go to.

 

[Fordsnfishin]

No Title

 

[Fordsnfishin]

Sorry for all the posts, figured out how to do photos now. If any photos would help let me know. Thanks

 

[flyingscott]

If you do not have power to the small terminal on the solenoid you won't even know if it's bad. You need to get power there from the switch get a electrical diagram. Neutral safety switch should be connected to the shifting linkage somewhere.

 

[Fordsnfishin]

Maybe I've misunderstood from what I've been reading.

But on the solenoid it has the 2 big posts. One being the hot wire directly from battery, the other what I believe is the ground or negative side. In addition is a small terminal on the solenoid, which I do not have power to, neither with or without the ignition button pushed.

Now I was under the assumption that the small terminal got its power from the hot lead attached on the large post? Am I thinking this wrong?

 

[flyingscott]

Yes that is wrong the small terminal gets it's power from the switch that is how it should be hooked up to. The big terminals should be,one should be hooked up to the battery and one should be hooked to the starter. what wires did you take off and how do they go back on. Since that is a yamaha motor could be different.You need a wiring diagram if it's different.

 

[Fordsnfishin]

You're spot on scott. I traced the wire down and found the neutral switch. Which I than checked for power at the solenoid, still no power. Traced further down and took apart a quick connect before the neutral switch.

I get my 12v when ignition is powered as it should. So looks like this narrows it down to the neutral switch as faulty.

How easy is it to find one? Any major reason to not just by pass it? Seems like it just keeps someone from starting it in gear on accident?

About to remove the switch and see if it can't be repaired.

 

[Fordsnfishin]

Do you know if the switch un threads, has socket heads on each end? Not any good way to get on them though without taking apart cables though. Bracket the switch is mounted on has a cable right infront of it attached to the same bracket

 

[Fordsnfishin]

No Title

Okay switch removed. I'll have to remove the tan plastic glue on top to get to the internals. I'll see if there isn't anything noticeable that I can't fix.

If not any idea where I could find a new neutral switch?

 

[Fordsnfishin]

Just as a test I ran the power directly to the little terminal on the solenoid and lo n behold the starter turned! So I know it's good. So that should mean my solenoid is fine as well right? Since I ran the power right through it

 

[flyingscott]

Solenoid should be fine, finding the neutral safety switch could be hard start with a mercury dealer see if they can help. At least get a part# for it then ebay and an internet search. That looks like a sealed switch the replacement should have the wires attached to it. You can do a continuity test on the neutral switch. I would put one on for the safety of it right here is one http://www.ebay.com/itm/Yamaha-Marin...G8AAOSwEK9T0q3 C&vxp=mtr

 

[Fordsnfishin]

Scott you have been a world of help. I appreciate it.

But this thing is still kicking my ass. Lol

Right now I've gone through all the connections and made sure they were tight. I resoldered the neutral switch back in, (checked out okay after the hour of trying to get it out), and now I'm getting power all the way over to the solenoid. ( this is a first )

Now that I'm getting 12 volts to the solenoid, when I try to start it it still does nothing. All though when I run power directly to it, and a wire attached to the frame of the starter to the negative it will run.

I feel like there is something stupid I'm doing wrong, but I'm not seeing it.

It's been a long day, I've moved from coffee to whiskey.

 

[flyingscott]

check your ground wires now you may need to clean them up.

 

[Fordsnfishin]

Will it work with the starter not mounted on the motor?

The main ground coming from battery I already cleaned. Along with any others I've taken off already lol. So about all of them

 

[flyingscott]

I don't think it will you need to get a ground wire on the starter. It looks like yours grounds through the starter case.