1974 Evinrude 25hp wont run.

[j cat]

I can push the button to start with the throttle open, in neutral and it fires right up no hesitation. It’s when I turn it down some it gets funny. But I have to set the carb up to the motor first. Waiting on my next instructions
Thank you all
Dale

2 yrs ago I had 1965-1975 outboard motors to fix them and sell them,..
the 25HP and lower ..the carbs have to be cleaned with the orifice port tool to clean the ports..then the coils and points have to setup the correct adjustments . if the plugs are out and wire clamp the plug threads to the engine block .. crank it and see if the arc is silver not a brown color ..
your post you sprayed starter fluid and the engine does not run so the ignition is a problem ...

my snow blower runs over 20 yrs . then in the winter the engine runs great ...snow blows the work 2 hours then the engine dies ... I pulled out the spark plug and the arcing was very weak brown arc.. took out the igniter coil .. had some rust on the metal plates located on the flywheel area ..I put the wire brush and then used mineral spirits to clean it ..
pulled the cord once and it is great .............

 

[Crosbyman]

j cat..... I think he is at the carb adj. level... of the problem

 

[j cat]

j cat..... I think he is at the carb adj. level... of the problem

the carbs are changing the floats needle valves and cleaning the carb ports.
alcohol fuel is a mess on these old carbs.. could a correct carb part ..hard too find those parts 2yrs ago..

 

[Crosbyman]

odd..... parts on oldies is usually available

it is the new stuff like early ETEC injectors are scarce.

been using 87 e10 for over 30 years withiout issues if it does not sit 6-12 months

 

[racerone]

Know all about scarce " newer motor " parts.------Sent two Ficht injectors to someone.----That party forwarded them to a friend in Slovakia , Europe.-----Got the " thank you very much " from them.----Had an enquiry for the " power distribution panel " party was happy to buy a used one as a new one was around $900 + taxes.----That part should be about $50 / 70 instead of what they list it at.-----Off topic I know.-----But it is cheaper to own / operate older motors if you can learn to do the trouble shooting and work yourself.

 

[Dalejam]

So if I go to the motor and push the button it starts right up. But I have more questions????
I took a video of the plate under the fly wheel if I can get it to run low enough the plate is junkin and jiven all over. Is that normal I think I might have a bad seal. For in the pictures you will see a lot of old oil. But the seal looks immaculate . I took it all apart put it back together cleaned I ran the motor for about 20 min. Then it was getting cold. So I will run it again tomorrow and see under the flywheel if more oil shows up. If so new seal time.
But if you can look at the pictures and small video and tell me if anything looks incorrect.
As usual thank you for all the help.
View attachment IMG_8907.MOV

 

[tphoyt]

I’m leaning towards your coils not being adjusted correctly. They are likely dragging on the flywheel.

 

[j cat]

View attachment 358582

So if I go to the motor and push the button it starts right up. But I have more questions????
I took a video of the plate under the fly wheel if I can get it to run low enough the plate is junkin and jiven all over. Is that normal I think I might have a bad seal. For in the pictures you will see a lot of old oil. But the seal looks immaculate . I took it all apart put it back together cleaned I ran the motor for about 20 min. Then it was getting cold. So I will run it again tomorrow and see under the flywheel if more oil shows up. If so new seal time.
But if you can look at the pictures and small video and tell me if anything looks incorrect.
As usual thank you for all the help.
View attachment 358582

So if I go to the motor and push the button it starts right up. But I have more questions????
I took a video of the plate under the fly wheel if I can get it to run low enough the plate is junkin and jiven all over. Is that normal I think I might have a bad seal. For in the pictures you will see a lot of old oil. But the seal looks immaculate . I took it all apart put it back together cleaned I ran the motor for about 20 min. Then it was getting cold. So I will run it again tomorrow and see under the flywheel if more oil shows up. If so new seal time.
But if you can look at the pictures and small video and tell me if anything looks incorrect.
As usual thank you for all the help.
View attachment 358582

well 2 yrs ago I replaced the engine seal under the flywheel.. replaced 2 outboard motors seal crankshaft .. I used a small drill then I used 2 screws to lift up that worn seal ... oil had pts in the oil mess ..

 

[racerone]

Coils can not be just installed like a sparkplug.----There is a factory tool to locate them in the correct position.---Agreed---- I think driver coil appears to be interfering.

 

[Dalejam]

I’m leaning towards your coils not being adjusted correctly. They are likely dragging on the flywheel.

Is there a way to set it properly then. If it is off how can I tell. There is no rubbing on the flywheel inside

 

[Dalejam]

I’m leaning towards your coils not being adjusted correctly. They are likely dragging on the flywheel.

Can I ask why do you say the coils are not set correctly. What did you see that made you think this .
Thanks
Dale

 

[Dalejam]

Coils can not be just installed like a sparkplug.----There is a factory tool to locate them in the correct position.---Agreed---- I think driver coil appears to be interfering.

There is only one coil under the flywheel . If that means anything . I was thinking of putting tape on the driver coil and seeing how much I can move it till it hits the wheel. Of course by turning it by hand ……

 

[racerone]

We get all these arguments from some folks.----Put the driver coil in the correct position and test run.

 

[Dalejam]

We get all these arguments from some folks.----Put the driver coil in the correct position and test run.

How do you know what is the correct spot… a tool ??? Or by what I said tape and time

 

[hardwater fisherman]

How do you know what is the correct spot… a tool ??? Or by what I said tape and time

A picture of the coil locating ring. And a picture of the coil locating bosses. I use a small straight edge and the the bosses.

 

[Crosbyman]

I use my index finger nail or small flat screwdriver ....should be no snag none... sliding it up and down on the coil face and the support structure (coil locating bosses)

 

[tphoyt]

The mag plate is moving back and forth because the coil is to close. The flywheel magnets are dragging the mag plate. It doesn’t need to be physically touching to be to close if that makes sense. As stated line in up with parallel with the flats on the mag plate.

 

[Dalejam]

A picture of the coil locating ring. And a picture of the coil locating bosses. I use a small straight edge and the the bosses.

That is how I originally set them up so they are sitting flush to the bosses . This is an original coil under the fly wheel, what are the chances it is the issue . Is there a way to tell ????
Thank you
Dale

 

[racerone]

Is the magneto plate bushing loose in the plate.-----Believe it or not if bushing is not lubricated it will wear from vibration during every minute that the motor runs.

 

[Dalejam]

Is the magneto plate bushing loose in the plate.-----Believe it or not if bushing is not lubricated it will wear from vibration during every minute that the motor runs.

What is the magneto plate bushing ???