Battery not charging! Help desperately needed please!

[Numptywizz]

Good morning everybody!

I have a very frustrating problem with my 1954 IFA RT125/1 and I am hoping somebody can help!........

When the engine is running, the charging light (red) will not go out and only goes slightly dimmer if the engine is revved highly. I have a regler RT125 (D+) from Moped-Werner.de fitted and I have double checked all the wiring and all seems correct. When the engine is running the generator (Lima 45w) is only giving 1-3 volts and I think this should be higher!

This is all that is stopping me from enjoying riding my RT and I am desperate to fix, so any help and advice will be very much appreciated!

Many thanks and kind regards, Neil

[Tourgigant]

Hi Neil,

One picture is worth 1000 words.
So maybe this clip is worth hundred thousand words.
It has englisch subtitles.

https://youtu.be/EYr1rBDSIqM

Greez,
Andreas

[Numptywizz]

Many thanks Andreas! hopefully this will help!

Kind regards, Neil

-- Hinzugefügt: 1. March 2020 14:21 --

Hi Andreas

I've done the first part (DF and D+ together and earth) and I've only got approximately 5-6 volts, so I think my generator may be the problem?

Regards, Neil

[flotter 3er]

Hi Neil, if you have measured everything correctly and the measurement at the generator only delivers 5 - 6 volts, then here is the problem.

[Numptywizz]

Hi Frank

Yes indeed! I think my generator is faulty (I've got a spare one from an IWL Berlin, hopefully I can use that!

Kind regards, Neil

[Tourgigant]

Hi Neil,
Since no one seems to be willing to spend another 1000 words on changing the generator, here’ s is another video on that issue. ?
And don’t miss part 2!

https://youtu.be/p_aBfxFOUAo

Best regards,
Andreas

[Numptywizz]

Hi there Tourgigant

Many thanks for the information! This will be very useful (especially as my friend has an ES 125/1!)

Kind regards, Neil