Yamaha says to use alcohol free gasoline whenever possible. I wonder if the choice is between 87 octane with 10% ethanol and 89 or 90 octane with no ethanol, what is the best choice?
Back in the day when auto gasoline was hard to get, I had Avgas available to put in my car. I remember having to scrape lead buildup from the spark plugs about every 500 miles. Otherwise the plug would stop firing when the lead bridged the two electrodes. The car was designed for leaded gasoline, just not in the quantities of what the Avgas had in it at that time. It smelled funky as well.
Back in the day when auto gasoline was hard to get, I had Avgas available to put in my car. I remember having to scrape lead buildup from the spark plugs about every 500 miles. Otherwise the plug would stop firing when the lead bridged the two electrodes. The car was designed for leaded gasoline, just not in the quantities of what the Avgas had in it at that time. It smelled funky as well.
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