Is better to use gasoline without ethanol for a 2005 v Strom 1000?
I have had significant issues with ethanol and my carburetors. YZ's, snowblower, lawmowers, scooters, rototillers, sand rails, etc.DRZ, lawnmower, snowblower, weed eater, etc all have carbs and all get ethanol and all have 0 issues.
I refuse to buy ethanol gas because it is ecologically unsound. Net, it produces more pollution (air, water, soil) due to the amount of oil burned in producing it, along with all the ag-chemicals added to the environment, not to mention the water consumed. If you keep your vehicles only a few years, I doubt you'll have time to see the problems caused by ethanol. I keep mine 15-20, and I'm not interested in finding that out.
I have seen first-hand evidence of damage to small engines from ethanol. Was given a lawn mower that ethanol killed. Rebuilt the carb, changed the fuel lines and filters, flushed out the gunk in the bottom of the (fortunately) plastic gas tank. Been using it for a couple of years now. Chainsaws, same story. There is no good reason to add ethanol to gas, except to keep the farmers happy. It does not replace oil, it just converts oil into ethanol.
Yes, if you are diligent about keeping it fresh, you may get by with it in modern engines. Operative word being 'may'. I see no reason to take the chance.
I'd be less concerned if consumers were given a choice to buy ethanol. But that choice is getting harder and harder to find. Many local stations have nothing but ethanol gas. And now the farmers, in a slump, want us to use more ethanol. I don't think so.
Good news is, with modern cars using closed-loop fuel injection, the oxygen sensor controls the fuel mixture, so a 'lean-burn' condition is unlikely to occur. Besides, in airplanes, where running 'lean of peak' was avoided for decades, they've actually found that there are benefits to operating an engine lean of peak exhaust temp, so long as the engine is still running smoothly. And that is predominantly in air-cooled engines, where valve temps can be a problem.