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