CB72 verification (edit - with link to photos)

amec21 · Post by **amec21** » Sun Dec 31, 2017 5:41 am

Hi all,

i am currently looking at purchasing a neglected CB72 to bring back to life as a historics racer.

The seller sent me some photos and one friend said the engine looked like a 150cc and that i should get him to send me the engine and VIN numbers to confirm it is a CB72 and it is 250cc. in doing so he sent me the following:

CB72 - 1009487
CB72E - 026950

Does this confirm what i am asking?

HERE IS A LINK TO FLICKR WITH SOME PHOTOS

https://www.flickr.com/gp/154609894@N06/188Lf4

G-Man · Post by **G-Man** » Sun Dec 31, 2017 6:16 am

CB72 denotes 250cc (actually 247)

Your frame number looks like 1964 but the engine number looks rather odd and may be missing the first digit. Can you get a photo of the engine number?

G

amec21 · Post by **amec21** » Sun Dec 31, 2017 7:09 am

Hi G,

Thanks for the reply.

I will get back in contact with the seller and ask for clarification.

amec21 · Post by **amec21** » Sun Dec 31, 2017 7:43 am

Here is a flickr link to some photos i have already

https://www.flickr.com/gp/154609894@N06/188Lf4

G-Man · Post by **G-Man** » Sun Dec 31, 2017 11:55 am

Interesting bike.

There engine (crankcases) are earlier than the frame but the early-style cases with the breather tower at the back are often sought-after fro race bikes because they 'look' more like racers with that style of breather.

If your engine number is correct it would suggest that it could be a 1960 motor - very rare but also unlikely. I would suggest that someone has stamped a replacement case.......

Anyhow - that looks a really nice project.

Interesting to know if it is a 250 or whether it has been overboard.

G

amec21 wrote:Here is a flickr link to some photos i have already

https://www.flickr.com/gp/154609894@N06/188Lf4

amec21 · Post by **amec21** » Sun Dec 31, 2017 5:11 pm

thanks G,

Are you saying from looking at the photos it is at least the 250cc? Pretty keen to get this lady home.

G-Man · Post by **G-Man** » Sun Dec 31, 2017 5:44 pm

Definitely a 250. May be larger.

Here are the numbers for CB72/77

G

amec21 wrote:thanks G,

Are you saying from looking at the photos it is at least the 250cc? Pretty keen to get this lady home.