Help indentifing BSA

1403 Views 8 Replies 6 Participants Last post by Englishman, Mar 19, 2006

PBRmeASAP

Discussion Starter · Mar 18, 2006

Found this for sale, said it's a 71 Thunderbolt
Don't have any numbers as of now, but i'm guessing it isn't a 71?
Also what would I look for to verify it is or isn't a 71?
where would you look to verify the mfg date?

Since i'm kinda new to older bike, expcially brit one's, the title should match the motor numbers, correct?

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dankchoppa

· #2 · Mar 18, 2006

71 and 72 had a bigger rocker box, the cover has two bolts in the top on the flat section(its mostly finned on top) that were used as a top mount or head steady type deal. that was the only two years that had that style head and cover. besides that check the numbers

heres a pic of the cover.....some earlier models had a cover that looked like this but did not have the two bolts in the top

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GASIT

· #3 · Mar 18, 2006

Looks like a '69. This is Siggy and his '69 Lightning. Where are you Sig ? Still in Germany?

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GASIT

· #4 · Mar 18, 2006

'69 Lightning.

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PBRmeASAP

Discussion Starter · #5 · Mar 18, 2006

is there a place on the frame or motor that will tell the year? hope to check this out saturday, for sale and cheap....

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VA Rebel

· #6 · Mar 18, 2006 (Edited)

Engine and frame should both have a VIN number. Didn't match on some years.

For a copy of the numbers, go to this link & click tech info:

www.britishspares.com

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51rat

· #7 · Mar 18, 2006

if u dont want it I DO

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PBRmeASAP

Discussion Starter · #8 · Mar 18, 2006

51rat said:
if u dont want it I DO

your about 10th in line if i don't get it....

thanks for the input everyone, i'll post some pics if i get it...

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Englishman

· #9 · Mar 19, 2006

dankchoppa said:
71 and 72 had a bigger rocker box, the cover has two bolts in the top on the flat section(its mostly finned on top) that were used as a top mount or head steady type deal. that was the only two years that had that style head and cover. besides that check the numbers

heres a pic of the cover.....some earlier models had a cover that looked like this but did not have the two bolts in the top

That and the whole Oil In Frame deal.

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Help indentifing BSA

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