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Author Topic: BSA b31 Dynamo  (Read 1998 times)

Offline ramwing7

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BSA b31 Dynamo
« on: February 19, 2026, 05:47:49 PM »
I recently came to own a 1949 BSA B31 without a hint of a wiring harness.  The magneto throws a hot spark, so I'd like to see if it will start up.
Question is will I damage the dynamo by running it under no load?
Thanks.
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Offline R

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Re: BSA b31 Dynamo
« Reply #1 on: February 19, 2026, 09:30:19 PM »
No.
As long as there are no wires coming out of the genny,
all those little electrons cannot be led astray

The genny is easily removable also, if this a long term setup.
Put a cover there to keep debris out ...
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Offline ramwing7

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Re: BSA b31 Dynamo
« Reply #2 on: February 20, 2026, 04:07:39 PM »
Many thanks.   ;D
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