Morning moweasy,
Sounds like it's sorted now.
Gotta confess I've not had a lot to do with the cutter clutch setup on your model but would like to help if I can. To that end we'd need to see some photos please.
In the meantime there is an Evo owners manual in the manuals section that might help. It gives instructions on how to change the cutter belt and how to adjust the system- and from the sounds of it the original problem the previous owner had with it might have been an adjustment issue (?)
Go to the bottom of the 'Questions on ride-on mowers' forum to the manuals section. On the second page is the greenfield stuff.
Hope this helps,
Cheers,
