Dynamo

General electrical problems
Simon.Gardiner
Holder of a Golden Anorak
Holder of a Golden Anorak
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Re: Dynamo

Postby Simon.Gardiner » Thu Mar 25, 2021 5:11 pm

I've got an electronic regulator, the dyno works without a (working!) battery but it blows speedo bulbs (especially but not only LED ones).
Very bright lights though! ;)

SG
'55 Huntmaster, '56 VH, ' 51 VH, '80 R100RT, '00 Sprint ST (but all those Ariel parts can only make one running bike...)

JohnnyBeckett
Holder of a Golden Anorak
Holder of a Golden Anorak
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Re: Dynamo

Postby JohnnyBeckett » Thu Mar 25, 2021 6:21 pm

hi i have got a NH that was fitted a V-REG regulator when i got it, and will not run the lights without a battery when i got the ariel i got it running and the lights did not work until i put a battery on it :?: and as far as i can work out it needs the power of a battery to make it work :?: other makes of regs may work without a battery :?:

nevhunter
Holder of a Golden Anorak
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Re: Dynamo

Postby nevhunter » Fri Mar 26, 2021 12:52 am

The regulator controls volts by regulating field current in the dynamo. IF it's adjusted too high you will blow small bulbs and maybe even bigger ones without a good battery in the circuit. You will also get excess depletion of electrolyte. Top up with distiiled water.(not acid) A dead flat battery is sometimes hard to get a charge started. IF it's been flat for a while it might be sulphated and may not recover. Nev


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