Fusebox Wire Gauge Sizes?

Can somebody direct me to a diagram that shows the colors and wire gauge sizes going into the fusebox or at the very least to just tell me. I have a lot of leftover wires from my last fusebox swap on my 550 and want to do it on my 650 and for some reason I feel like on one of the fusebox terminals the brown wire had two different sizes. I really can't remember. Anyway, I'm sure a diagram of some sort can figure this all out. Thnks.

 

the main fuse is 20 amps feed from battery to key.
the rest are all 10 amp
the brown wire comes from key switch to the 3 10 amp fuses if there is a heavy brown wire it should go to headlight

page of catalog with wire sizes and how to id.
http://www.xj4ever.com/catalog/d-4-wiring.html

 

There are 2 different sizes of brown wires going to the fusebox, one is 16 AWG and the smaller two are 18 AWG. The 16 AWG wire is just the continuation of the wire that runs from the key switch all the way back to the fusebox, and the two smaller gauge wires (smaller = 18 AWG) are simply tapped off of the larger 16 AWG wire a few inches inside the taped harness.

XJ550H is correct, the thicker wire goes to the headlight, but in reality, it doesn't matter, they are all 10A fuses, so 18-gauge wire is adequate for any of the circuits. The headlight circuit got the larger wire "just by chance" (one of 3 circuits had to get it........). Now, on some other models, the lights circuit is 20A, and it should ALWAYS get the thicker wire. But on the XJ650 Maxim models it doesn't really matter, but, in the interest of making the wiring as "correct" as possible, then do it the way that the factory did it.