classic motorcycle forum

Motorcycle Discussions => British Bikes => Topic started by: rarpos7 on August 18, 2013, 05:56:15 AM

Title: AJS 1920,s
Post by: rarpos7 on August 18, 2013, 05:56:15 AM

Can anybody tell me where I find an engine number on an AJS side valve motor approx. 1924/25?

It has a stirrup holder over the cylinder head.

Thanks,

Title: Re: AJS 1920,s
Post by: chaterlea25 on August 18, 2013, 11:14:37 PM

Hi
To the best of my limited info there should be a brass plaque rivites to the cases on the drive side below the cylinder
Best place for info is http://groups.yahoo.com/group/wd-prewar-ajandmatchless/

HTH
John

Title: Re: AJS 1920,s
Post by: rarpos7 on August 18, 2013, 11:49:08 PM

Many thanks for the information.

Title: Re: AJS 1920,s
Post by: rarpos7 on August 19, 2013, 06:59:53 AM

I have attached photos of the motor.
I cannot find any engine number or marks on the crankcases.

Thanks,

Title: Re: AJS 1920,s
Post by: rogerwilko on August 19, 2013, 10:03:23 AM

All you need is the rest to make it a goer!  (http://i244.photobucket.com/albums/gg3/takka22/000_0701.jpg) (http://s244.photobucket.com/user/takka22/media/000_0701.jpg.html)

Title: Re: AJS 1920,s
Post by: rarpos7 on August 24, 2013, 07:23:29 AM

I have now found a number on the motor. It is 9320.
Any body have an idea from this number as to the age of the motor?

Thanks,