WSK125: Connecting Diode Bridge Unitry - Diagram Differences and Connection Guidance

Hello! I have a diode bridge unitry https://gmoto.pl/produkty/58185/mostek-diodowy_1.jpg
I have no idea how to connect it as to what, because in the diagram I have a different diode bridge than this.
scheme:
https://images83.fotosik.pl/718/1619a128402add23gen.jpg

This may help. https://www.elektroda.pl/rtvforum/topic1065153.html

Unfortunately no, there is nothing where to connect.

Two wires must come out of the magneto, probably one of them. The link describes what to connect where.

In the link above it is described which cable where to connect you need to read the entire thread carefully, you will find out.

One wire from the charging system goes to the weight of the motorcycle while the other wire goes into the lamp and there is a one-half selenium ptostownik which is exactly one selenium plate.

Added after 2 [minutes]:

In addition, the charging system is protected by a fuse around this selenium plate.

Added after 4 [minutes]:

Simple. blow the selenium plate and solder a silicon diode in this place, it can be 5 or 10A, charging will definitely improve, because the diode has a much higher efficiency than the selenium plate.

kierbedz4 wrote:

the diode has a much higher efficiency than selenium plates

Have you ever seen this "efficiency"?
And ... What is the efficiency of the diode?

Here you have the installation scheme for your version of WSK https://static.elektroda.pl/attach/ins_wsk12543.jpg
And here are the changes that need to be applied to take full advantage of the rectifier bridge.
You can connect a bridge according to first scheme. It will also charge the battery, but with one-half current.

Ok, let me know what and how today

The diode has less resistance in the direction of conduction as well as very high resistance in the blocking direction. Selenium rectifiers are obsolete over the years, they change their parameters. In WSK 175 motorcycles, the selenium bridge was mounted in the first and then the next version. Low parameters in the reverse direction caused battery discharging at a standstill within 24 hours. Only the introduction of diode bridges by the manufacturer, their installation in the above-mentioned motorcycles and the production of the above-mentioned diode bridges for WSK 175 motorcycles on the market as a spare part and after replacing the rectifier bridges with a diode problem of the battery discharge system at standstill ceased to exist.

What time ago for fun I measured the original selenium rectifier from 67r. The forward voltage for 1A was about 1.6V, and the reverse current for 6V was less than 1mA. I was surprised, because in principle the parameters were very good, basically not inferior to the silicon diode. But probably not the rule, the diode is more reliable

Hello, I'm adding a clearer diagram of the WSK 125 M06 B3 and Kos electrical installation from 1985

The diagram shows like a bull that this two-half rectifier that was used in WSK 175 motorcycles in the WSK 125 motorcycle is used and used only as one half. Instead of breaking your head by connecting it, just mount a 5 Amp diode in the charging circuit of the WSK 125 motorcycle.

Added after 10 [minutes]:

In the first version of the WSK175 with a 12V on-board installation, two-half rectifiers made on selenium plates were mounted, however, with the passage of time they did not keep the set parameters and then instead of the above mentioned plates, diode bridges were installed, which by their parameters did not allow the batteries to be discharged at standstill.