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Flat Battery....a ghost in my electrics⁷
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Sponge
Lancashire (A chip shop somewhere near Preston)
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April 3, 2021 - 8:03 pm
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My current theory is that the RR02 regulator doesn't put out much current - that explains the lack of charge but doesn't explain the battery draining conundrum.  I have checked the wiring circuits over again this afternoon and all is in order. If there is a problem with the way it is wired it is outside of my experience.   All the other bikes I have wired seem to behave themselves.   

Electriex world seem to imply a small battery. It originally had a 12AH full size 12v battery but when it started boiling and wrecking them ( with or without the lights on) I put the smallest cheapest mottobatt in that I could get.  Today I replaced all bulbs with LEDs to lower the electrical load but with lights off and only intermittent use of the stop light it still drains the battery after about 10 minutes running.  I don't think that this particular battery will tolerate another discharge/charge cycle.   

Given above advise I have, therefore, taken the last ditch plunge and have ordered a PP12 capacitor to run DC without the battery. Hopefully it will arrive next week and I will report back how it goes. 

Many thanks for the help - I wish EW charging systems were as easy to diagnose and fix as D7s jumping out of 2nd gear.....that's relatively simple. Once I get my MM back I might be able to get to the bottom of this. 

      

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cocorico
Central France
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April 4, 2021 - 8:17 am
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popcorn

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sunny
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April 4, 2021 - 9:04 am
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so my  2  pennys  werth   is  the     EW  kit  comes  from  a faster    runnig  motor     and  is not  suitable for a  slowing   running  one    wich  is 

best  suited  to  Roy Bacons     1960s   12volt   covertion    serjestion    with  a   Zener  Diode     coz  if  you  allready   got   12 vt lamps   its  

only  gona  be  the  cost  of  the  Diode  today  about  £ 50  i  would  think       

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cocorico
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April 4, 2021 - 9:42 am
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I don't think running the engine is the problem, Keith. The ignition is from a self generating Capacitor Discharge unit. The problem seems to be somewhere between the regulator, battery and lights. I think other people on the forum use the Electrex World system, perhaps they could chip in?

BTW - I like your style, Les. "My current theory is that the RR02 regulator doesn't put out much current ".

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Sponge
Lancashire (A chip shop somewhere near Preston)
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April 4, 2021 - 10:51 am
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It is definately putting out something...... and that is definately 12v DC.  I just tried it with a flat battery to see if it could sense the need to output more current but no......it just drained the hell out of the flat battery and made it flatter. 

Going to wait until the Capacitor arrives now. Poor old D7 still condemned to a corner of the workshop. 

Now switching main effort to finishing off the details on the D10A...........that has totally stock 6V WIPAC electrics all the way through and a champion spark plug and everything works fine ..........funy old thing that isn't it ?? !!!   

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cocorico
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April 4, 2021 - 4:46 pm
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Er, if it wasn't for the site's auto censor, I'd say the regulator was «censored». That's progress for you, though. I could say that if you like riding an old bike with 'poor' brakes and 'poor' performance, stick to the stock systems. If you like riding a bike on today's roads, ride something a bit more modern - but that would spark off a whole new discussion, so I won't. cant-look

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Sponge
Lancashire (A chip shop somewhere near Preston)
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April 4, 2021 - 5:37 pm
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Yes if you remember this all started with an Atom unit and a way to change sleeve gear bushes without stripping the engine. 

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cocorico
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April 4, 2021 - 5:59 pm
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Still, to be topical, "Always look on the bright side of life". whistle

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Number6
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April 8, 2021 - 8:34 pm
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cocorico said
Er, if it wasn't for the site's auto censor, I'd say the regulator was «censored». 

-

I think so too, sound like it. I had an EW rec/reg I was going to put onto a Moto Guzzi, when I becnh tested it, to see how it worked, I wasn't totally happy with it, and never put it on. Instead I got a electronic reg as for old boxer BMW's and kept the original rectifier.

Mike H --

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.

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Sponge
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April 11, 2021 - 7:35 am
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Well....the PP12  capacitor has arrived now and I have indulged in a cheap(ish) multimeter. There are 2 directions of travel at this junction....I can fit the capacitor where the battery used to go and run the lights DC ........or I can remove the regulator and run the lights AC with a 12V spike supressor to prevent the lights from blowing. 

The PP12 capacitor looks to be omni-directional...it has a red and a black going in and exactly the same coming out so I guess it doesn't matter which way you install it although the instructions don't say anything about it. I need to devise a bracket to hold it securely as it doesn't have a mounting tab on it. 

My plan will be to do a few tests on the battery with the MM first then to go down the DC route first and watch what happens. If the regulator fries the capacitor then I can go AC and find a solution for the horn etc. 

If its not too cold and the snow melts I might be able to report back soon. 

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cocorico
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April 11, 2021 - 8:26 am
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The capacitor is a 2 lead device, there are 4 on yours for ease in fitting I suppose. Think of it as a low capacity battery of no specific voltage. You could use any capacitor with a suitable dc rating (50V would be more than enough), but the higher the capacitance the more charge it can hold. The regulator itself should have a small one inside it, I would have thought. I would be a bit wary of connecting it to a regulator that has been present during the destruction of several batteries already...

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Number6
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April 11, 2021 - 11:17 pm
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Watching.

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Mike H --

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.

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