"put some Castrol R in the tank" no no mate, you'll be needing some of Agip's finest 2 stroke oil as an upper cylinder lubricant-I can supply this of course........
Castrol 'R' though, that takes me back to my DBD34 Goldstar days, and racing the 1000 Vincent sidecar outfit-hmm happy days when I was young and stupid.............now I'm just old and stupid..........
John