While you wait for answers, we may have found some information which could help you.
Click here for Power Engine Startshard to start B&S 37 egine fitted to Rover quickstart mower?
Lawn mowers on Australian market?
Rover Rancher 15hp Model18189. Ser No 184009?
mower won't start?
How can I fix my lawn mower (Rover ES)?
How to replace pull start rope on old Rover mover?