Author Topic: Dynamo check?  (Read 1177 times)

Offline emilios

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Dynamo check?
« on: 09.05. 2010 19:44 »
Hi
I just want to check if my dynamo is charging...
I read a lot about bulb connect to dynamo in this forum but i didnt understand it fine..
How to connect the bulb on my dynamo..
Ok i disconnect the 2 wires from dynamo..then i connect the two wires from bulb to F and D?
Or one wire to F or D and the other one to dynamo body?
Please advice
Thanks
1956 BSA A10 Plunger
1954 BSA B31 Goldstar Replica
1970 Honda cb750K0 project
Cyprus

Offline a10gf

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Re: Dynamo check?
« Reply #1 on: 09.05. 2010 21:30 »
see the quote here

Try with for ex. a 21w 12v lamp (supposing you have a 6v system, otherwise, use a 24v lamp)
e


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Offline Mosin

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Re: Dynamo check?
« Reply #2 on: 09.05. 2010 21:48 »
Get yourself a cheap multimeter They are worth their weight in gold for a multitude of tasks and you can get one for about £5.

Set your new multimeter to test for voltage.

Put one multimeter probe on the positive terminal of the battery and the other on the negative terminal.

The meter will now show the level of your battery (in a 12v system this should be just over 12v, in a 6v system it should be just over 6v)

Start the engine.

As you increase the throttle, you should see a noticeable increase in the voltage shown on the multimeter (in a 12v system it should rise up to about 14v, in a 6v system it should rise to about 8v). If you do see this rise, your dynamo is charging fine. If there is no change in the multimeter reading with the engine running then something is wrong.

It's as simple as that!

Good luck

Simon
1960 A7 Shooting Star
1959 D3 Bantam
1994 Triumph Trident 900

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