Manufacturers have an endless selection of materials. Why would they choose materials that deteriorate in the absense of fuel? Can so many people really be that stupid or evil?
Think about it. What can the soft parts of a carb cost at manufacturing level? Maybe fifty cents for the cheapest material to five dollars for the best material. I'm disgusted at the GREED!
A modern carb should be able to deal with the Ethanol exposure directly. What is often the problem here is white powder.... no, not that stuff, I'm talking about deposits in the carb.....
I was talking with a retired mechanic in an auto parts store a couple of winters back...... he was picking up carb cleaner for the 1 year old snowblower carb parts in his hand.... main drilled-tube orifice (can't recall the real name) was totally plugged with white crusty deposits. It was not his, he was helping a neighbour that knew nothing about engines.
I had that ^ same issue on my '98 B&S gen. Parts had not physically deteriorated, but the float had stuck open due to white crud, back when I was storing Dry. Some guys "fix" that by dropping a gen 3' onto concrete, but that's not my style.... unless it was my only gen, and I had to get somebody's oxygen-generator running NOW....... Never say Never, Murph is listening......
Rgds, D.
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