1954 AJS 16 MS carb issue

[Paulie B]

Hello everyone.
My 16 MS will only run with the choke on about a third. It’s starts first kick with no choke, absolutely fine and idles nicely but will not go down the road until I add choke. It is running out of puff early too and will not rev at all. I can just about get her up to 50mph but it’s an effort. Any ideas? Thanks. Paul..

[Ralph]

Main jet blocked.?

[Kenww]

Which carb are you using?
Do you have a sloppy slide

[SPRIDDLER]

If it isn't blocked jets all of those symptoms are absolutely typical of not advancing the ignition after starting - i.e starts fine, idles well but won't rev etc.
You don't say if it's a new to you bike so pardon me for suggesting such a thing but are you sure you aren't muddling the operation of the choke control with that of the A/R control?
If you don't have it you can find the Owners Manual with instructions for your bike here:

http://archives.jampot.dk/book/Owners_m ... ingles.pdf

[raffles]

I t sounds to me that you are not using the choke correctly. Pull the lever toward youto take choke off
Push away from you to apply choke.
Tony

[Paulie B]

Thanks guys. I was so used to pulling a lever for the choke, that I assumed that no choke was in the slack position. Feel a bit daft.