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b40rt

How Do You Check A Generator?

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Hi all

I lost all sparks on my B40, havnt had a chance to get into it but would like to know how to check the lucas generator.

Also are there any checks for Boyer systems ? How long do they last, it must be a least 10 years old. (Just had a look at the Boyer site and they have fault finding information) Any common problems ? Bad earth, plug cap ?

I get the occasional backfire when kicking it over, but can hold the plug and get nothing. The coil is quite old so I may change this as a matter of course.

I've tryed a couple of new plug to eliminate that, but have got no further.

Any pointers appreaciated

Ross

Edited by B40RT

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Hi this may help, Not really sure of the electrics on bsa's but you can test by using a multi meter set for ohms, testing each of the wires with each other. you should have some resistance and no open circuits. you can also test with a meter set to volts DC testing from each wire to your frame as negative and kick the bike over you should see the meter read 6v or around 12v.

I hope this is of some use

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Hi this may help, Not really sure of the electrics on bsa's but you can test by using a multi meter set for ohms, testing each of the wires with each other. you should have some resistance and no open circuits. you can also test with a meter set to volts DC testing from each wire to your frame as negative and kick the bike over you should see the meter read 6v or around 12v.

I hope this is of some use

Thanks for the info, will give a try.

Ross

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