Hi Normk,
As per the document below, there were changes to the body of the carby. So if you're going from newer to older, you may find the mower more stable (In relation to fuel supply and carby function). However, if you go the other way, and take an older carby and put it on one of the VE series mowers, it might work, but who knows how well, and you may end up having issues down the track. Also, if you're worried about emissions, you may notice a difference there too.
https://www.outdoorking-forum.com.au/forum/u...2220/filename/322-PowerTorque2Engine.pdf
