All the while the factory was turning out kick-start iron-barrel 350s with right-foot shift gear boxes life was simple.
Then they brought back the 500.
Then the 350 AVL models.
Then the 500 5 speed models.
Then the 350 5 speed models.
Then the 500 AVL models.
Not sure, but I think that towards the end of the non-UCE/EFI years they had one set of right-hand crankcase castings for all the K/S models and another set for all the E/S models (including 350s in India), machined according to what bits were being fitted.
This is why the later l/h crankcase halves have the metal in place for both k/s and e/s chaincase fixings, and the r/h cases have the alloy blob in place for the different AVL return oilways even on late iron barrel engines.
My big head Bullet engine is built into a set of right-foot shift e/s crankcases from 2001-ish. both crankcase halves have the cast alloy lump inside the oil tank which would have been bored out for the gearchange shaft tunnel on left-foot shift 5 speed bikes, the one which leaked on Dennisgb's engine when fitted with the wrong gasket.
If you haven't got a parts book for your model I thoroughly recommend the on-line parts books on Hitchcocks' web site.
A.