Thanks Jack
Worked out why the PTO is on the other side someone has sat the engine on the wrong way. I'll make up an adapter plate to achieve similar angle for the belt as above.
Did a little work on the engine today too try and get her running. Cleaned all the ignition system up, set the timing and are now getting a nice strong blue spark. Also cleaned the carby it was in good condition just needed a tidy up. Got it turning over with a drill gives puffs of smoke out of the exhaust but won't fire up. Doesn't seem to have a whole lot of compression when turning it over. Any idea what is common to cause low compression on these? Will have another go at getting it running tomorrow if not I'll need to strip it down and see what the issue is.