Electric Shift

[E120B]

Hey.<br /> On my 72 125 with electric shift if won't go into neutral but. it stays in forword and will goin reverse.. whats wrong?

 

[OBJ]

Re: Electric Shift

Sounds like the shift switch in the control box might be going bad......that's just a possiblity. First thing to do is check the lower unit for water although I doubt you will find any from the symptoms you described.<br /><br />Next thing to do is check the votage at the shift wires where they go to the lower unit. You have a blue and green. Blue is the reverse and green is the forward/neutral wire.<br /><br />Disconect the knife connectors where the shift cable goes to the lower unit, starboard side of engine block. With a volt meter, you should get the following readings.<br /><br />Blue and Green wire going to lower unit. Blue is reverse and green is forward.<br /><br />No power to either = forward.<br /><br />Power (12V's) to the green = neutral<br /><br />Power (12v's) to both = reverse.<br /><br />If you don't have 12V's with the control in neutral, most likely the shift switch has gone bad or you have a break in the wire.<br /><br />Keep us posted as to what you find....thanks.

 

[E120B]

Re: Electric Shift

I was talking to my local evinrude goo-rew and he told me that i should be puttin dextron 2 in the lower unit is that true?

 

[Bass Runner]

Re: Electric Shift

Originally posted by E120B:<br /> Hey.<br /> On my 72 125 with electric shift if won't go into neutral but. it stays in forword and will goin reverse.. whats wrong?

You have lost power to your neutral solinoid, check the wires going to the lower unit on the starboard side of your motor, the defalt setting when you have no power is it will be in forward gear, when you get power it will be in neu. If the wires are still connected at the power head go to the switch and check power at the neu. button, you are still getting power to reverse so i would say it is one of the wires is unplugged or broken between the control and the powerhead, the worst senario is the neutral solinoid is out.

 

[OBJ]

Re: Electric Shift

I don't know about the dextron 2. I would only go with Premium Blend for electric shifts. Then you'd be sure. Just make sure the container says it will work in electric shifts.

 

[Joe Reeves]

Re: Electric Shift

 

[E120B]

Re: Electric Shift

Hey. <br /> I finally got to testing the wires going to the lower unit. i have power to both of them in reverse, power to one in neutral, and no power in forword. i tested the power after the plug that goes to the lower unit so i know there makin a connection. what do i do next??<br /><br />Also what should i have for a prop.. i motor dosen't seem to be reaching 4500 rpms?? 18' bass boat, 7' beam weights just about 900 pounds!!

 

[Joe Reeves]

Re: Electric Shift

E120B... If you disconnected those wires leading to the lower unit, then took a voltage reading, that could have given you a false full 12v reading as there would be no voltage draw (you can obtain 12v from 8 AAA batteries).<br /><br />Leave the engine harness wires connected to the wires leading to the lower unit, just slide the insulator back away from them. Have the black lead of the volt meter grounded, have the key in the ON position and while having the appropriate shift position selected, connect the red lead of the meter to the proper related wire connection (Green, Blue).<br /><br />The meter should read a full 12 volts when voltage is applied to the wires. If the voltage reading is less (obviously less...6v, 7v, etc), the shift switch is usually at fault. The switch can be checked simply by jumping the terminals at the switch, bypassing the switch.

 

[E120B]

Re: Electric Shift

Hey <br /> Eariler i went out and checked them with a test light but i went out again and checked them with a volt meter. neutral 10.75 volts reverse 9.78 volts in blue and 10.75 in green?? is that bad or good?<br /><br />also Prop?? Stainless or Aluminum?

 

[E120B]

Re: Electric Shift

were can i get the cylinoids for this motor??

 

[Joe Reeves]

Re: Electric Shift

If your battery is in top notch condition, those voltage reading would indicate that you've either got a faulty shift switch or something is wrong with the wiring between the shift switch and that connection to the lower unit at the powerhead.<br /><br />To test the switch/wire theory, run a small jumper wire directly from the battery side of the starter solenoid to the shift wires leading to the lower unit.... as needed for neutral (voltage to green) and reverse (voltage to both green and blue).<br /><br />If the lower unit shifts as it should, then obviously the lower unit is fine.

 

[E120B]

Re: Electric Shift

Hey.. I was wondering a jumper from the starter.. the batterys are only 2 weeks old and i made sure they were fully charged.. 12 volts in them. so i'll try jumper wires and see if that works

 

[E120B]

Re: Electric Shift

hey. I went out and did that and the prop didn't spin freely.. i tried giveing each cyliniod power at seperate times than i gave them both power.. prop still wouldn't spin freely.. is the neutal cylinoid bad???

 

[E120B]

Re: Electric Shift

Can I Order this stuff from i boats?

 

[Joe Reeves]

Re: Electric Shift

When using that small jumper wire as explained above to check the shifting, the engine needs to be running.<br /><br />Jumping voltage to those wires with the engine not running does nothing.<br /><br />Did you have the engine running?

 

[Franki]

Re: Electric Shift

I had the same problem with my 100ESL72, and in my case it turned out that the oil pump in the gearcase was clogged with stuff.<br /><br />In my case, I managed to fix it without stripping the gearcase.. I dropped off the leg, filled it with premix, and hooked my cordless drill up to the drive shaft, and gave it a good old spin and let it sit for an hour or so. (to disolve the oil deposites)<br /><br />After that I gave it a bit of a flush with clean oil, then refill. I was able to test mine with the cordless drill by appling voltage to the wire/s via a battery and some jumper leads (while the cordless is spinning the drive shaft) so I could make sure it was working before going to the effort to refit the leg. (be sure you don't do that with premix still in the gearcase.)<br /><br />Once you know its working, reinstall the leg, hook it up. when I did mine, all was then working perfectly.<br /><br /><br />It seems to happen when you leave the motor for extended periods without running.<br />Obviously this is harder to do then testing the switch in the control box and the wiring to the gearcase, so you should do that first.<br /><br />hope that helps.<br /><br />rgds<br /><br />Franki

 

[E120B]

Re: Electric Shift

No I didn't Have the engine running i'll do it today with it running

 

[E120B]

Re: Electric Shift

Im Guna Have to Try What frank said.. no neutral with it running with jumper to green.. hopefully i'll be lucky... During all this the water pump decided not to pump anymore....<br /><br /> It Seems weird because it will shift from forword to reverse while running and only using the push buttons.. theres just no neutrall so the pump is pumping but the prop don't stop spinning

 

[E120B]

Re: Electric Shift

Well Dropped The Lower unit and found out that the green and blue wires were crossed!! Does that hirt anything??

 

[Dhadley]

Re: Electric Shift

It will do exactly what you described in your first post. <br /><br />Makes a heck of a noise when it goes from forward to reverse, doesn't it?