It was obvious: M8 screws with 5 mm hexagon socket, where the tool cross-section is smaller than the cross-section of the screws. This could not end well. Actually, I only wanted to disassemble the calipers, clean them and reassemble them with new screws to keep the look uniform on the machine.
When disassembling the front fork it turned out that the crumbs on the spars were not crumbs at all but rust spots where the chrome layer already had holes. So the fork legs are scrap.
For the assembly of the cylinder heads I had to order new expansion bolts and a few other small parts, these should not be reused after disassembly. Unfortunately the copper gaskets at the nuts at the cylinder head are not according to standard, so the old gaskets were brushed off and installed again.
At the rear suspension all needle bearings had to be replaced, because the old cages were full of water for years. Therefore the cages were corroded when they were removed. For the installation of the needle bushes I made a suitable bolt on the lathe to countersink the bushes so that the shoulder for the …
The motorcycle frame and the rear swing arm were completely disassembled, the bearings from the swing arm will be replaced later. The frame was first cleaned with a parts cleaner and washed afterwards.