Here's a copy of the bulletin I got from Yamaha on the use of Ethanol blended fuels. Basically they recommend use of a 10-micron fuel water separator filter in addition to any filters under the hood. Ethanol is a water magnet, and this is the main problem with using it.
Here's a link to the bulletin: http://www.maverickboats.com/p...9.pdf
The Racor or the Yamaha filter with the bowl on the bottom of the element will provide the 10-micron filtration needed.
Mike