Would an A50R fit in this conversation? Two Alpha - my engine is stamped ND 02116 A50R all in a row on the background stamped boss. The frame# boss is stamped ND 02116 A50R with the A50R below but still on the boss.
Sure does, yours would have also came off the line in October, 2009.
Any chance of posting a photo of the engine serial number? Of course other photos of the bike would be a treat as well.