1953 500 Twin Gearbox

Information relating to the Matchless G9 or AJS Model 20 500cc twin
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1953 500 Twin Gearbox

Postby NORSAKI » Thu Jan 16, 2020 3:47 am

Can anyone point me to a blowup drawing of the B52 gearbox as used on the 1953 500 twin? I am working on the bike for a friend and have ordered a service manual from the club, not here yet. Also, the push button on the magneto cover, is that a kill switch? This is a lovely little bike, look forward to hearing it run.

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Re: 1953 500 Twin Gearbox

Postby SPRIDDLER » Thu Jan 16, 2020 8:50 am

Welcome to the Club and these Forums, Kevin.

You will find all manuals (Owners, Workshop, Spares list) for the bike here under 'Books':

http://archives.jampot.dk/

Here you'll find exploded drawings and overhaul articles for B52 'box from the same website page as the link above but under Technical...Transmission...Burman:

http://archives.jampot.dk/technical/Tra ... on/Burman/

Yes, the button is a Kill switch. It shorts the contact breaker low tension supply to Earth (Ground).
I poke badgers with spoons.

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Posts: 5
Joined: Thu Jan 09, 2020 1:35 am
Location: Fl USA

Re: 1953 500 Twin Gearbox

Postby NORSAKI » Sat Jan 18, 2020 3:00 am

Thanks for that link...

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