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-   -   UPDATE 2 stroke ignition (https://www.onlycubcadets.net/forum/showthread.php?t=41921)

ford4150 12-07-2015 11:53 AM

UPDATE 2 stroke ignition
 
I now have spark. It all comes down to where the blade on the black wires in the photo below are attached to the points.

When I got the Honda it wasn't running. The previous owner had tried to get it running without success and sold it to me.

I replaced the points with new and connected the blade the way I found it.

This was incorrect.

More details to follow in the next post.

http://www.onlycubcadets.net/forum/p...pictureid=6669

ford4150 12-07-2015 12:03 PM

http://www.onlycubcadets.net/forum/p...pictureid=6670

Prior to today, I had connected the blade on the black wires between the fiber washer and the points stationary base.

In this configuration, the points would make/break continuity when the points open and closed. This was how I thought the points should work.

Today I placed the blade on the black wires between the bolt head and the metal washer.

Now the resistance between the black stator wire and the green stator wire changes from 0.3 ohms to 2.1 ohms as the points open and close. There is never a point when continuity is lost. Just the fluctuation is resistance as the points open and close.

Well, I hope this explanation is clear. In any event, I now have spark.

http://www.onlycubcadets.net/forum/p...pictureid=6671

J-Mech 12-07-2015 12:40 PM

So, the wire was installed on the points incorrectly and it wasn't touching the points. Always the simple stuff that gets you.

This information is true with any set of points.

ol'George 12-07-2015 05:14 PM

You are not the first to be bit in the arse by putting a terminal under an insulated stud.
So glad you continued to test and not gave up or started a needless conversion.
Much luck as you continue on your project.:beerchug:

J-Mech 12-07-2015 05:28 PM

Quote:

Originally Posted by ol'George (Post 354355)
You are not the first to be bit in the arse by putting a terminal under an insulated stud.
So glad you continued to test and not gave up or started a needless conversion.
Much luck as you continue on your project.:beerchug:

True that! :beerchug:

ford4150 12-07-2015 07:11 PM

Yes, I learned something here. The first 2 stroke motor I've tried to fix and my first magneto ignition with points.

Thanks for all the interest in helping me out.

ol'George 12-07-2015 07:24 PM

I would like to add,
we ALL learned things , that is what is so good about the internet, and forums like this.
We all have ideas, and here, nobody should feel theirs is insignificant.
the only "dumb" question is the one that is not asked.
When we quit learning, we have drawn our last breath.:beerchug:

Sam Mac 12-07-2015 07:30 PM

This has been entertaining, keep us posted on how it runs when you get it running. :beerchug:

ol'George 12-07-2015 08:02 PM

Quote:

Originally Posted by J-Mech (Post 354341)
So, the wire was installed on the points incorrectly and it wasn't touching the points. Always the simple stuff that gets you.

This information is true with any set of points.

Usually the point base is grounded, and if so, in this case, I believe the source coil's power, was going straight to ground,by being next to point base and not insulated by the insulating washer.
When he moved the wire end to between the nut and metal washer, the power could then flow to the insulated movable point through the bolt and then the points can work as intended.
I've seen it before many times over the years as I grew up with points.
In later years ( mid 1950's) GM addressed that problem and simplified their breaker points, by doing away with the bolt by using the tension from the spring strip on the movable point, to attach the wire end.
It was/is pretty much foolproof, less expensive to manufacture and much less assembly/replacement time:beerchug:


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