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