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