This is what I read on Model T forum:
http://www.mtfca.com/cgi-bin/discus/...02&post=278496His experience is that Sta-Bil will, if the carb dries out of gasoline in, say, six months, leave a hard varnish/goo that necessitates disassembly and cleaning of the carb before use.
As an alternative, he uses a shot of 2-cycle oil in the gas tank before storage — apparently it too stabilizes the fuel and if said fuel should evaporate from the carb over time, the oil residue left behind will readily mix with the gas once the fuel shutoff valve is opened up.
I'm intrigued as I experienced problems staring my boat after prolonged storage (due to dry bowl) despite using Stabil religiously. After 9 years the carb looked like this:
My experiments with Stabil do show that Stabil can evaporate completely leaving a solid film behind:
Now, this is a 4 cycle engine, but I'm thinking about using 1:200-1:500 TWC3 oil from now on.
So, my question for the 2-cycle outboard forum is if anyone noticed problems when gas with TWC3, but without other stabilizers, dries in a carb during storage?