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1937 AJS 250 37/22
Posted: Thu Mar 26, 2020 2:47 pm
by NORMAN NIPPY
Some months ago I removed the battery, as the leads are not marked . Is it pos or neg earth
Thanks
Re: 1937 AJS 250 37/22
Posted: Thu Mar 26, 2020 3:36 pm
by Rob Harknett
I thought you had an instruction book.
http://archives.jampot.dk/book/Workshop ... dition.pdf
Ashampoo_Snap_26 March 2020_15h34m14s_001_.jpg
Re: 1937 AJS 250 37/22
Posted: Thu Mar 26, 2020 6:04 pm
by clive
My method, as you can never tell what a previous owner has done, would be to connect the battery any terminal earthed. Turn on the headlight. If the ammeter shows discharge all is good. If it shows charge then its the wrong earth. Reverse them and run the engine if the dynamo is charging all is good. If not you will have to flash over the field. You have a 50:50 chance of being right and plenty of time to sort it out if wrong!
Re: 1937 AJS 250 37/22
Posted: Thu Mar 26, 2020 6:59 pm
by NORMAN NIPPY
Thanks for your reply yes I have a manual for bike , but when I see it is a neg earth I wanted to check as my G9 is a
Pos earth
Thank you