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Author Topic: B31 Magneto Puller size?  (Read 122 times)

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Fraz

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B31 Magneto Puller size?
« on: 28 June, 2024, 14:35:32 »
Can anyone advise what size and thread pitch, the magneto puller tool needs to be, for a '54 B31 please?

I may already have one that fits, from my vintage moped collection.

Thanks
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Bigsingle

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Re: B31 Magneto Puller size?
« Reply #1 on: 28 June, 2024, 20:25:51 »
Hi , I looked it up and made mine a while back , but just looked this up  for you , hope this helps .  From British only Austria
Magneto Pinion Puller. BSA. A7. A10. M20. M21. M33. B31. B32. B33. B34. Gold Star.

A7. A10. Sutable for manual advance and retard drive gear.

5/8" OD Thread. 20TPI
« Last Edit: 28 June, 2024, 20:41:08 by Bigsingle »
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Roy

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Re: B31 Magneto Puller size?
« Reply #2 on: 28 June, 2024, 20:39:53 »
My ones 11/16 x 20 tpi
Roy
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Bigsingle

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Re: B31 Magneto Puller size?
« Reply #3 on: 28 June, 2024, 21:29:42 »
Yes , Roy is correct , I just measured mine ,
 11/16 as a decimal is 0.6875
Unable to change my previous post that was copy and pasted from British only,  maybe the parts person couldn't read the vernier ,  I think that is about 17.4mm . Cheers .

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