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