Update:

It's Alive yay

Turns out it was the little solenoid fuel cut off that goes in the bottom of the bowl... well with it removed and the hole capped the mower run's

Haven't given it a full work out as all the cooling system cowling is off but will put everything 100% back together and give her a run in the morning.. it's a hot'n'humid north QLD saturday so it's beer time cheers

Well I've been waiting for a day that I could pick up a cheap compression tester and today was the day - got it for next time plus a spare plug woot

Still need to work out the battery issue though, fairly sure its the solenoid but am unsure as to how to fault test it... would appreciate some guidance on that issue

Thanks for all the suggestions and help so far.. would love a link to a workshop manual or full electrical schematic smile