While you wait for answers, we may have found some information which could help you.
Success
Message
Flymo 400 turbo stopped working?
Bosch al3640 cv?
Mountfield empress drive belt?
How to recoil the starter spring - Champion R484TR?
Throttle issue?
No ignition light?
How do I trace a Lawn Tractor starting problem?
Lawnmower repair?
Tractor won't shift into gear?
Reassemble Throttle?
Trying to find lawn mower part- Power Devil PDG4037R?
Carburettor?