As I bought the bike 1990 from Deutsche Dnepr it was equiped
with an Ural 650 engine.
Oil: Engine SAE 50 in the summer, SAE 30 in the winter time.
Gear: SAE 75
Sparkplugs: Bosch WR8B+, if the engine starts to run rought I crosschange the sparkplugs left/right.
Dellorto PHBH 28
Main Jet: 118
Slow Jet: 50
Needle Jet: 2nd notch from the top.