The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => Lucas, Ignition, Charging, Electrical => Topic started by: rockthedog on 06.11. 2011 09:01
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hi all. i have just rebuilt my dynamo with a full kit of ebay,i have + earth on my bike ,will i have to flash the dynamo when fitted, if so how do i go about it thank you mal.
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Highly likely you will have to flash it if it is a new rebuilt dynamo as you say. Take out the connections on the F & D of the end cap and take a live wire from the negative - terminal of your battery, then just touch the F terminal on the end cap. One second is enough NO more! Reconnect the F & D wires to end cap and job is be complete. Often dynamos need re-flashing if they are stood unused for a long period of time as the very small residual magnetism fades.
Note: When flashing you will likely see a very small blue spark, this tells you flashing is done. If you should accidently use the positive + then no damage will have been done.
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Highly likely you will have to flash it if it is a new rebuilt dynamo as you say. Take out the connections on the F & D of the end cap and take a live wire from the negative - terminal of your battery, then just touch the F terminal on the end cap. One second is enough NO more! Reconnect the F & D wires to end cap and job is be complete. Often dynamos need re-flashing if they are stood unused for a long period of time as the very small residual magnetism fades.
Note: When flashing you will likely see a very small blue spark, this tells you flashing is done. If you should accidently use the positive + then no damage will have been done.
thank you will go and try it, will report back thanks again mal. *smile*
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Highly likely you will have to flash it if it is a new rebuilt dynamo as you say. Take out the connections on the F & D of the end cap and take a live wire from the negative - terminal of your battery, then just touch the F terminal on the end cap. One second is enough NO more! Reconnect the F & D wires to end cap and job is be complete. Often dynamos need re-flashing if they are stood unused for a long period of time as the very small residual magnetism fades.
Note: When flashing you will likely see a very small blue spark, this tells you flashing is done. If you should accidently use the positive + then no damage will have been done.
thank you will go and try it, will report back thanks again mal. *smile*
all is now well thanks to this forum thanks to you all *smile*
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Mine quit after being left for just a few days. As you say, a quick flash and it's OK again. Odd?
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Yes. Field cores must be leaking! You'll have to seal them up!