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