gpzrfan, your not alone. I put some thought into this as well when I was tossing around this subject. I may be wrong, but I believe the supplied port on the FPR is in the correct place (Some credit to engineers) so as to read the regulated pressure. Another words it's going to read the pressure you want to see which is what you set it at. Mine does.
I know there is a lot of ways you could do this. So I will just share what my thought was. I wanted my gauge where I can see it when I am actually making any adjustments to the regulator. So mine comes off the regulator and I put an extension on it where it sticks out past the DFI harness and away from the engine, at least a little bit. Does it work? IMHO yes it works beautifully, whenever I am making an adjustment to the regulator the gauge is right there in my face.
Heat, heat is a legitimate concern. Honestly where I found it gets the most heat, is when you shut the bike off and the heat is emanating straight up on the gauge. So much so, that my first gauge got so hot it popped the plug out and leaked all the oil out all over the engine and my garage floor.
So I bought a gauge with a screw in permanent plug. Issue solved. After this happened I thought, I wonder how hot it is getting when I am just cruising down the road at like 35 mph. (Not that it matters, because I am not looking at it, so I really don't care I watch my AFR) But I put my bare hand on it anyway. Where mine is, it's not that hot, I could put my bare hand on it.
You could go crazy if you want. Like the position of the regulator to begin with, it gets so hot right there that it could boil the fuel in the reg. if your not careful. But Kawasaki put it there, so was it right, did they know what they were doing?
I don't know, it's kinda personal preference to some degree. I am very happy with mine, it looks good, works good, and is right where I want it when making adjustment's. Sorry if I got long winded.
