There was a lot of discussion about the 2-micron this Spring. The subject started to get hot when Florida got ethenol. You might want to do a search. On my OX66, cleaning the 2-micron screen filter on the bottom of the HP fuel pump was a regular maintenance chore because I was running a 10-micron fuel water sep on the boat. With a 2-micron racor that chore is eliminated (at least in theory) So far I haven't any problems but I do carry a spare on board. Might also want to get to know the guys on the boats.net Yamaha forum. This is a pretty common problem. The problem with the racor is it doesn't come as a set, cartridge & bowel. There are separate part numbers for each. I got them home and will check tonight and advise. I got them at marinefilters.com and I do recall both being a little pricey (about $45). But once you have the bowel you just have to buy the cartridge which is around $20.
Cheap insurance and beats idling back home :-|