How many of you guys who would warranty the engine --have ever been in manufacturing and sales?
The customer had problems - however the business of the 3 minute run to a sag tells a lot about his familiarity with engines .
This is the heart of the matter.
The run in instructions really should cover this type event -that is - never run up new engine to full bore --unles you are thoroughly familiar with how the engine should sound .
The oil used won't save any engine -
air cooled really means fuel cooled .
From the mfgr's view -- the appearance of scuffed skirts - stuck rings etc., means only one thing - too much heat and that is the criteria for most mfgr's to accept/refuse warranty.
If proper run in instructions are furnished - as most mfgr's at least attmpt to provide ,
then it looks to me like any warranty is strictly a good public relations offer.
If I was in the engine sales business --I would do the following - based on the state of today' CD technology.
I would provide a CD with a introduction to the starting and running of the new engine .
Replete with sounds to listen for , carb adjustments and sound changes and appearance of proper plumbing etc.
A CD copy costs 25 cents
a good movie can be shot in one day.
I really don't se why no one does this .
It is common practice in other fields.
The savings on warranty work alone would cover a day's shooting.