I've been spending some time working on a friends carb this week. It has the heat soak issues that many complain about so when I pulled it in the shop I immediately pulled the top to look at the fuel and thought it interesting to see the boil. This is 10% ethanol. My experience has been less of an issue with no ethanol gas as it's boiling point is higher. I would say this one is certainly in need of a phenolic spacer.
Last edited by Brewski; 08-26-2014 at 08:53 PM. Reason: Add link
Sometimes a simple switch in gas stations will improve things. Some gasoline are more susceptible to boiling than others and as you mentioned, alcohol content makes it worse.
"It's better to have loved and lost, than to live with a psycho the rest of your life"
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