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Sh775 installed not charging

  • Thread starter Thread starter Wheelbreak
  • Start date Start date
On the subject of Stators, I just purchased a Electro Sport $135 (made in China by the way) it looked nothing like the Electro Sport stator I bought for my 1100 three years ago. The new style looks very similar to the original stock stator. The older one (pictured) looks more robust.
 

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storm 64 said:
On the subject of Stators, I just purchased a Electro Sport $135 (made in China by the way) it looked nothing like the Electro Sport stator I bought for my 1100 three years ago. The new style looks very similar to the original stock stator. The older one (pictured) looks more robust.
Click to expand...

How can we tell?
 
This is just my uneducated opinion of course. The older Electro Sport stator has a thicker blue insulator coating. The newer Electro Sport stator seems to have a thin layer of "shellac" for insulator. I don't have a good picture of the newer one to post now. If the newer stator last for years and many miles I will obviously have no complaints. If it happens to fail this summer's riding season, I will definitely let all know...
 
storm 64 said:
This is just my uneducated opinion of course. The older Electro Sport stator has a thicker blue insulator coating. The newer Electro Sport stator seems to have a thin layer of "shellac" for insulator. I don't have a good picture of the newer one to post now. If the newer stator last for years and many miles I will obviously have no complaints. If it happens to fail this summer's riding season, I will definitely let all know...
Click to expand...

I have long recommended the Electrosport stators because of the heavy epoxy coating you show in the picture. They seemed to be the exception rather than the rule for not using thin clear almost non existent coatings.

The winding need to be immobilized to avoid flexure from the electromotive force on the winding when they produce power. Unfortunately even with a Series R/R if there is flexure it will eventually cause stator failure. With lower stator currents it is not as important , but it is a shame to see Electrosport moving to the lower end side of the market. It is basically a market dynamic, you can have the greatest product in the world, but if the customer doesn't understand or think they need it, the product will fail in the market place.
 
I don't think a thick external coating is a direct measure of quality. Where I work we assemble motors for a few (aerospace) products and none of the stators have that killer thick coating. These motors spin at 25,000 rpm's too and they are decently sized (not tiny).

I think the OEM stators are made by ND aren't they? Not exactly a shady operation.
 
The newer Electro Sport stator for comparison... I soldered and heat shrunk the spade connectors so they plug right into the regulator/rectifier...
 

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Nessism said:
I don't think a thick external coating is a direct measure of quality. Where I work we assemble motors for a few (aerospace) products and none of the stators have that killer thick coating. These motors spin at 25,000 rpm's too and they are decently sized (not tiny).

I think the OEM stators are made by ND aren't they? Not exactly a shady operation.
Click to expand...

Ed, it is clear than the vast majority of the technical community in motorcycle charging systems do not understand them present company not excluded. You seem to be following a regular pattern of drawing technical conclusions from anecdotal evidence.

It unfortunate that Shunt R/R's have caused such a high attrition rate on stator that,( and not only for the obvious reasons) any stator design weaknesses are quickly associated with the shunt R/R rather than a poor (albeit adequate) stator design.

As per the discussion and contrary to your thinking, the winding need to be immobilized and as opposed to simply being coated. So when you look at your particular stator, do you feel that the winding can be subjected to EMF forces and not flex? We are not talking about a high speed motor but rather that the simple electro-mechanical device we call a stator.

When I look at the way that the windings are joined with unsupported wires bridging between poles, I would really like to see something to help support them and the epoxy is comforting. If you consider the vibration that the engine has and where this stator lives, it is a whole different more hostile environment than a motor spinning at 25K RPM. You need to evaluate the principal factors involved v.s. making an apples to oranges comparison and drawing your conclusions from that.
 
I deliberately avoid the stators new or used that have been gooped - I like to see the winding job. A decent insulating varnish should hold the windings in place from the tugging/ reaction of the spinning magnets. A poor winding job can look great covered, but unless you drop it on floor, the goop is overkill. I remember reading about some guy with a CX-500 that battled the gooped ES stators twenty years ago- the goop covered a very careless winding technique
 
tom203 said:
I deliberately avoid the stators new or used that have been gooped - I like to see the winding job. A decent insulating varnish should hold the windings in place from the tugging/ reaction of the spinning magnets. A poor winding job can look great covered, but unless you drop it on floor, the goop is overkill. I remember reading about some guy with a CX-500 that battled the gooped ES stators twenty years ago- the goop covered a very careless winding technique
Click to expand...

can't win for losing :)
 
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