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I'm a 2-stroke junkie but have never found ethanol to be a problem with a 2-stoke running PREMIX and 93 octane. The oil seams to cancel out the ethanol problems. If you want to clean things up put 1 cap full of seafoam to a tank of fuel (about two gallons) I use that occasionally to keep power valves clean and working smoothly.
the rules were you could add up to 10%. that much is enough of a problem but the way it was written each stop (read each temporary owner) the fuel made could add the 10%. so the mfg dumped in 10, then the buyer did their 10, then the transport agency did 10, then the service station could specify 10 also. stacking these adds up quickly.
I think Triple Jim is referring to 4 stroking . Dusty
My ex-wife's B750 sat three years in the garage with no additive. Ethanol/yes. Started right up and ran a little hesitant at first but then fine. Don't worry too much about a few months or your Toro.
(if anyone knows a source for non-ethanol gas in MA please let me know),
Amazing. Really. You just can't kill those old-school Heron head 750 engines.
In Mass. the small, local airports sell av-gas without ethanol. I tried getting some at Norwood airport and was rebuffed by the attendant. Anyone know of a friendly airport in greater Boston?
i assume the "cycling" means it runs a bit rough or sounds like it is missing a bit when not under a load but running wide open. if it then cleans up or sounds right when under a load it means the high speed jet is set right. when under a load they need more fuel than when not under a load. otherwise you can get a lean seizure.