Just went and measured it there are TWO different sized holes for the cylinder studs, the big ones go over the dowels, but if you want to go from a picture on Ebay be my guest.
I am going by the actual gasket I have. The pic on ebay is a pic of what I actually have. All 4 bolt holes are the same dia and are large enough to fit over the dowels. If you have a gasket with some holes bigger then other then can you tell me if the silicon bead is up or down when properly installed?
wrench man is right, there is 2 different size holes and it only fits one way. No base gasket i have ever bought from yamaha has ever had any silicon on it though.