RS Mag 21 disassembled some questions.

[FluffyChicken]

Not my pictures, they're some I kept from an ebay sale a while ago as I thought they may come in useful , oh and the air seals above with the recessed part are for the MAG30 and '93 MAG10, all others are flat both side afaik.

 

[reetegoed]

Crazy! :shock:
Just did a conversion! It went suprisingly smooth and easy..
Check
http://www.retrobike.co.uk/forum/viewtopic.php?p=587947#587947