Hi Max and AVB,
Nothing is really worth repairing for resale these days, just buy something cheap and buy another next year.
Max that rideon was heading to the scrap but if somebody wants parts it is good value. The engine oil was clean, hadn't been changed, I think it had a valve problem that could have easily been fixed if somebody needed a motor. As you say, not worth my while fixing the motor when you get bugger all for them if you sell them