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