service parts

.. here would be my first port of call.

so suppliers of parts for AMC lightweights would be good to look at. 

1) NOC Spares, run by our lovely Neil Shoosmith.

2) as above

3) Russel Motors of Clapham can sometimes help. http://www.russellmotors.co.uk/

4) Norvil Motorcycle Company can sometimes help. https://www.norvilmotorcycle.co.uk/

5) RGM Motors can sometimes help. https://www.rgmnorton.co.uk/

6) eBay is very useful. https://www.ebay.co.uk/

7) Adverts in Old Bike Mart. See https://www.oldbikemart.co.uk/

8) ....and probably the best fun are AutoJumbles. Advertised in the above .....

9) As suggested above, you could also try AMC outlets:

     a) AMC Classic Spares. http://www.amcclassicspares.com/

     b) AJS & Matchless OC Spares. https://www.amoc-parts.com/store/comersus_listCategoriesAndProducts.asp