Sheldon , I had to beat my pivot bolt out with a BF hammer . It had rust seized into the bush on the sprocket side ( see pic ). I wound up lying the bike on its right side , support frame around pivot area ( lumps of fire wood ) , and bashed her out ................all the time worrying about hidden circlips ( there are none )
This is a spare swing arm assy I have , but that bush sitting on the arm goes into the needle rollers you can see and the pivot bolt goes thru that. Heaps of CRC WD40 , you cant even get a bit of heat onto it either ..... be patient
Hamish