Generator comparison question

So wrote:
The reason valves burn on dry fuels is because of the lack of lubrication & cushioning on the valve's face & seat. The constant metal-to-metal contact of the valve face & seat, disrupts the seal and eventually causes exhaust leakage. The continued exhaust leakage eventually burns the valve, not because of direct overheating. This isn't an issue when Stellite valves & seats are used.

-kenny-

Thanks for the facts about this, Kenny. Never to old to learn.

I'll guess most folks that do convert to propane or natural gas don't bother to update the valve parts to deal with the lack of lubrication. Wonder how many hours it would typically take for a converted engine to start having problems?

-Robert@Honda
Caveat: I work for Honda, but the preceding is my opinion alone.