I was looking at this pic on Gumtree and I can't work out how this works. I guess it does but I can't say I have ever seen one before. What I would like to know is how does this motor work, from what I can see it is a side valve motor with the carby and the exhaust both on the same side. Can anybody explain to me how they have done this and then the second question, Why?
https://www.gumtree.com.au/s-ad/williamstown/lawn-mowers/lawn-mower/1214911601