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