1959 AJS Model 31, 648cc. Registration number YSY 368 (non t...

Estimate

£3,000 - £3,500

1959 AJS Model 31, 648cc. Registration number YSY 368 (non transferrable). Frame number 69455. Engine number 50/31LX 0215.
Sold with the V5C, 1997 MOT and a service invoice.
The AJS Model 31 was also produced as the Matchless G12 by the same company. Designed by Phil Walker, AMC knew that it had to be a 650cc but wanted to use as many cycle parts as possible from the preceding 600cc Matchless G11, which had been badge-engineered as the AJS Model 30. The cylinders could not be bored out further, so the stroke was lengthened from 72.8mm to 79.3mm, increasing capacity to 646cc. That meant developing a new crankshaft and primary chaincase, which also provided the opportunity to add a Lucas alternator. Volume production began in September 1958.
YSY was restored over 12 years ago by an AJS/Matchless enthusiast. Both engine and frame/tinware were overhauled. Our vendor states that it has only done 19 miles since and was the stored for over 12 years.
A new battery has been fitted and all electricals are working, it will most likely need some light commissioning.