Ok first off when changing fuels you should always put the needle seting back to the factory setting. Every fuel is different in it's own way and there for has it's own personality. With some fuels you need to run the needles a little more rich then othere's. And vice versa, Ok after that some engine just wont run on other fuels at all. Some engine are picky, once you start with that fuel some engines just wont run unless you run that fuel. I have come across those type of engines. But most engine will run on other fuels then the one you started with. But your engine may not run with that type of fuel.

But basically you need to start off by seeting the needles off at the factory seeting's. This will give you a base of which to go from. This should be more then rich enough for any fuel. Then from there you should only have to fine tune it to your liking.


Well i hope this helps you.