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Re: Wassel unit faulty? EDIT: probably not
Posted: Sun May 04, 2014 6:56 pm
by Train Driver
I had two stators done and then had a wassle conversion
Not my best move, it was done for me as i'm bone idle and haven't a clue

The battery kept going flat then the lights wouldn't work so I gave up and ordered this
http://www.scooter-center.com/product/B ... KT?lang=en .
I've since been told nothing wrong with the stators it was all wired up wrong

Re: Wassel unit faulty? EDIT: probably not
Posted: Sun May 04, 2014 7:00 pm
by Nerdy Norm
Thanks TD, but (I think) I've resolved the electrical problem now. I just need to sort out the issue over the refitting of the flywheel and I can confirm everything by testing it.
Re: Wassel unit faulty? EDIT: probably not
Posted: Thu May 08, 2014 3:14 pm
by Nerdy Norm
Just to bring this to a conclusion:
I've replaced the Beedspeed stator with the BGM one, and all is working fine now. I tested the battery voltage with and without the engine running, and it goes up from around 12 volts to around 14 volts, so all sorted
Thanks for your help everyone!
Re: Wassel unit faulty? EDIT: probably not
Posted: Sat May 17, 2014 9:40 am
by KCB
I have exactly the same symptoms on a BGM stator.
The yellow wires exiting it all have continuity to earth.
However, with the stator plate removed there is no continuity but the stator is earthed when on the scooter as it is metal touching the earthed engine.
Therefore how can the yellows Supposedly not be earthed as well?
How are the yellow wires supposed to be isolated from Earth on the stator?
Can't get my battery to charge as only getting approx 5v out of the Red wire, everything else seems to be lighting from the battery.
Re: Wassel unit faulty? EDIT: probably not
Posted: Sat May 17, 2014 11:13 am
by coaster
KCB wrote:I have exactly the same symptoms on a BGM stator.
The yellow wires exiting it all have continuity to earth.
However, with the stator plate removed there is no continuity but the stator is earthed when on the scooter as it is metal touching the earthed engine.
Therefore how can the yellows Supposedly not be earthed as well?
How are the yellow wires supposed to be isolated from Earth on the stator?
Can't get my battery to charge as only getting approx 5v out of the Red wire, everything else seems to be lighting from the battery.
The 4 lighting coils are wound on plastic 'bobbins' which slip over the fingers in the stator core. They are connected together in series and a yellow wire attached to either end. There should be NO electrical contact between the lighting coils and the stator core, if there is it can only mean that there is contact between the coils or the yellow wires and the stator plate core or backing plate or maybe as the yellows pass through the cable gland?
On an AC setup, one end of the lighting coils is soldered to an earth tag on the stator core, this should be unsoldered and have the 2nd yellow attached to it, check that it isn't still soldered to earth or that the joint isn't touching earth either.
Re: Wassel unit faulty? EDIT: probably not
Posted: Sat May 17, 2014 12:43 pm
by KCB
Found the issue I hope.
Took the BGM stator of and compared it with an Indian one.
The Indian one has insulating tape between the coils and metal face of the stator.
The BGM one did not and some of the coils were actually touching the plate.
This is probably OK under normal circumstances as one end of the coils is normally earthed anyway.
How ever for the Wassell where the coils need isolating from earth this is no good.
So I wrapped insulating tape around the coils like so :
I hope this is OK to do as the Indian one only has the tape underneath the coils not all the way around
Hopefully this will sort the issue, I will update in due course, and perhaps this will help others out.
Not sure why BGM stator coils aren't isolated like Indian ones though!!!
Re: Wassel unit faulty? EDIT: probably not
Posted: Sat May 17, 2014 2:24 pm
by KCB
Quick update.
That seems to have solved the problem.
Cheers Coaster for your help
Happy days

Re: Wassel unit faulty? EDIT: probably not
Posted: Sat May 17, 2014 2:48 pm
by coaster
KCB wrote:Quick update.
That seems to have solved the problem.
Cheers Coaster for your help
Happy days

Glad you're on the right track, the tape won't doo any harm, a couple of turns should be enough. However, that is extremely shoddy work from BGM, if the coils short to earth even on an AC setup, it will have the same effect as only part of the coil will be working (up to the point of the short).
Cheers
Colin
Re: Wassel unit faulty? EDIT: probably not
Posted: Fri May 30, 2014 11:56 am
by Nerdy Norm
In the interests of fairness, Beedspeed have remained helpful throughout, and have refunded both the cost of the faulty stator, and my return postage. I'd certainly have no hesitation in ordering from them again in future.