1996 V6 225 Ocean Pro problem

[RVCOFF]

Hi guys, I am new to the forum, but need help. I recently bought a new boat with an Evinrude outboard. I have had a compression test done 90-95 on all 6 heads, water pump changed, new lower unit lube, new sparkplugs.

The problem only happens on the water, after I shift into gear the motor dies when I try to accelarate past 1000 RPM. Neutral and reverse are fine. Whats weird is if I sit there and keep going from neutral to forward sometimes it will work and run up to full RPM's....???? Any ideas???
Thanks,
-Eric

 

[ezeke]

Re: 1996 V6 225 Ocean Pro problem

Check the shift assist switch - it's behind the shift lever on the starboard side of the engine.

You can temporarily disable it by disconnecting the black wire, but be careful because it can be very hard to shift out of forward (as when approaching a dock).

 

[team shadow]

Re: 1996 V6 225 Ocean Pro problem

I had the same problem this weekend but forgot to try disconnecting the black and yellow wire. I did notice the rpms dropped from 800 down to 500 when ever it happened. I tried running it at home and also ran it on 1 gallon of Sunoco Ultra in a 3 gallon tank and a can of Sea Foam cleaner and that seemed to do a good job of decarbing the engine and cleaning the carbs. Hooked it back up to the boat tank with a new fuel filter and it was fine. Haven't water tested yet.
A guy I work with has a 95 and he disconnected the wire and it seem to fix his problem.

 

[RVCOFF]

Re: 1996 V6 225 Ocean Pro problem

Ok...I'll try that...just a sidepoint, I tried an external fuel tank today and it still had the same problem. And when I messed with the neutral button on the remote handle, thats when I could get it to run properly.

So if I disconnect the black wire and it solves it, should I order a new switch?
Thanks,
-Eric

 

[ezeke]

Re: 1996 V6 225 Ocean Pro problem

Ok...I'll try that...just a sidepoint, I tried an external fuel tank today and it still had the same problem. And when I messed with the neutral button on the remote handle, thats when I could get it to run properly.

So if I disconnect the black wire and it solves it, should I order a new switch?
Thanks,
-Eric

Not necessarily. Look at the diagram here: http://i213.photobucket.com/albums/cc281/originalseahorse/keyswitchwiring.jpg

The solid black wire is the ground for the system that allows the ignition switch to turn the engine off; without it you would need to choke the engine or stop the fuel supply to turn off the motor.

Disconnecting the solid black wire also disables the emergency kill circuit, so that is also something that you should check because if the lanyard piece is loose, it wil cause your problem.

 

[RVCOFF]

Re: 1996 V6 225 Ocean Pro problem

Ok...now Im confused are we still talking about the shift assist switch? Or another switch?

 

[ezeke]

Re: 1996 V6 225 Ocean Pro problem

Not necessarily. Look at the diagram here: http://i213.photobucket.com/albums/cc281/originalseahorse/keyswitchwiring.jpg

The solid black wire is the ground for the system that allows the ignition switch to turn the engine off; without it you would need to choke the engine or stop the fuel supply to turn off the motor.

Disconnecting the solid black wire also disables the emergency kill circuit, so that is also something that you should check because if the lanyard piece is loose, it wil cause your problem.

Here I was referring to the black wire on the ignition switch.

In regards to the shift assist switch:
If you disconnect the black wire on the shift assist switch the shift assist switch won't work. If that appears to solve your problem, adjust the position of the switch. It is only supposed to work when coming out of forward gear. It cuts three of the six cylinders off when it works correctly.

 

[bryanlayne]

Re: 1996 V6 225 Ocean Pro problem

im having the same problem with my 1995 225hp johnson. but i can sometimes get it into gear and the rpms up but only for 10-12 seconds . i just switched over to mixing my fuel in the tank the day before. (plugged oil intake on vro and mixed the oil in tank) run like a champ for 20 minutes then same thing as original posters problem. i dont think its the shift interupt cause i dont thing it works anyway. maybe the temp sensor is killing me? please help i gotta be on the water at 7 in the morning saving oiled birds in biloxi MS.

any ideas would really be aprieciated

 

[RVCOFF]

Re: 1996 V6 225 Ocean Pro problem

Here I was referring to the black wire on the ignition switch.

In regards to the shift assist switch:
If you disconnect the black wire on the shift assist switch the shift assist switch won't work. If that appears to solve your problem, adjust the position of the switch. It is only supposed to work when coming out of forward gear. It cuts three of the six cylinders off when it works correctly.

If it only works coming out of forward gear, I'm not sure that will help me...cause my problem happens when I'm in gear and trying to accelerate. Most of the times I can't get it passed 1000 RPM's, but sometimes if i keep shifting all of a sudden it will run great, until I shift back into neutral then it starts all over again. Whats weird is when I get it to work its by pressing that soft rubber neutral button and shifting forward.

 

[jonesg]

Re: 1996 V6 225 Ocean Pro problem

im having the same problem with my 1995 225hp johnson. but i can sometimes get it into gear and the rpms up but only for 10-12 seconds . i just switched over to mixing my fuel in the tank the day before. (plugged oil intake on vro and mixed the oil in tank) run like a champ for 20 minutes then same thing as original posters problem. i dont think its the shift interupt cause i dont thing it works anyway. maybe the temp sensor is killing me? please help i gotta be on the water at 7 in the morning saving oiled birds in biloxi MS.

any ideas would really be aprieciated

Thread hi-jacking is not allowed.

 

[ezeke]

Re: 1996 V6 225 Ocean Pro problem

If you don't want to troubleshoot the shift assist switch, that's OK with me. The point is and was that the switch cuts three of your 6 cylinders off and if it is improperly aligned it can and will cut off three cylinders when you don't want it to. If someone has made adjustments to the shift lever on the engine, the switch needs to be checked at the same time.

The only other thing that automatically cuts the engines on your motors is S.L.O.W.

That's only supposed to happen when the temperature switches indicate an overheat condition and signal the powerpack.

Having the tan wires from the temperature switches too close to the spark plug wires has been known to cause problems as well as corroded temperature switches.

If the blocking diodes in the harness fail, OMS warning signals and fuel obstruction warnings can trigger S.L.O.W.

Once S.L.O.W. is on, it is not supposed to release until you turn the ignition off and allow the engine to cool off, so normally it would not cut in and out on its own.

 

[bryanlayne]

Re: 1996 V6 225 Ocean Pro problem

thanks for the reply... its not that i dont want to troubleshooot the shift switch but i pulled it out of the way(so that it cant depress the button) and no difference. i think it has something to do with the switch to mixing my own gas. because that is when the problem arose. i pulled the oil buckets and plugged the oil input on the vro and mixed 50:1 in the tank... is there anything else that i need to do when switching to mixing my own gas. i have twin 225 on the boat and the other one still runs fine. i replaced sparkplugs, replaced recor and inline filters. i tried opening the gas cap while running and didnt help. i tried pumping bulb while runing but when i squeeze the bulb it stays flat and i have to squeeze it in a different angle to make it pop back out into shape. if i choke it it wants to die... thanks again for your help. and any other ideas would really be a blessing

 

[ezeke]

Re: 1996 V6 225 Ocean Pro problem

To bryanlayne: If the primer bulb is collapsing, the problem is between the bulb and the tank, or the primer bulb itself.

Are the motors on separate tanks? Do you still have anti-siphon valves(s)?

 

[RVCOFF]

Re: 1996 V6 225 Ocean Pro problem

ezeke thanks for the help, I was under the wrong impression that the switch would only affect going into neutral from gear. I see what your saying, it could be malfunctioning at any point. I will try to disconnect it tomorrow and see what happens... lets hope thats it!

 

[team shadow]

Re: 1996 V6 225 Ocean Pro problem

It's a black and yellow wire near the starboard side thermostat and you can trace it to the switch under the linkage on the same side.

 

[RVCOFF]

Re: 1996 V6 225 Ocean Pro problem

ok...thanks for the help everyone, It was the switch...I disconnected the black wire and it ran perfect, except I couldnt switch into neutral. So how do I adjust it now?

 

[team shadow]

Re: 1996 V6 225 Ocean Pro problem

replace switch