Hi,
Could someone please let me know what the DA50 'updates' actually are and also, how do you know whether an engine has had the update done or not..............???

Cheers.

There were connecting rod and piston updates and carb mods. The only way to know if your engine was done is to call Da with the serial from the engine. Mine newest is in the low 3000 range and required the updates

The cut off for the serial numbers is at about 3200. Anything above that number already has the updates and needed mods. If your serial number is lower than that, just call them to see if the updates were performed. Hope that helps.

I updated mine to a ZDZ 50 NG. No more updates needed.