AJS & Matchless Owners Club

Hi all,

Just wondering... does anyone know the approximate TT to Monobloc jetting conversion ?

Further to information posted here on my other thread, it seems that my '55 G80CS came out with a TT carb and a 340 main. My monobloc is also a 1 3/16", and so was wondering if there is a conversion that might state what my jet should be?

(I realise there is info there also for the 'G80S' for 55 that states a 389 Mono witha 250 main. However, that is also a 1 5/32" throat.).

Just wondering....
Marty

My 1956 G80cs runs on a Amal 389/12, 1 3/16 bore. 30 pilot, 3 cutaway, 440 main jet, 106 needle jet and needle position 3.

It,s performance regularly scares the pants off me.

Hope this is of some help.

Colin