speedometer wiring question

[feltzo]

So I got one of those mini speedos from Dime City Cycles a while back and finally got around to soldering it on.
Everything works except the neutral light stays on when in other gears and the oil light doesn't turn on when the key is on but the bike is not running.
I wired it thusly:
Speedo                          Honda Wires

+Green                           Black
-Red w/ Black                  Black
-Green                           Light Green w/ Red
+Red                             Blue w/ Red

Green wires to to neutral light
Reds go to oil light.

Made sense to me when I was looking at the schematic, but now doesn't seem right looking at it on paper . It'd be a pain in the ass to fix as it is all shrink wrapped and everything, but do I have to worry about the oil pressure switch not working properly? Will the neutral light turn off when there is an oil pressure issue or something weird like that? Just wanna make sure this won't cause any problems.

[TOOLS1]

I do not know how the wires correlate between the two, but I do know that the hot goes to the neutral,  ant the oil pressure lights, then the other connections go to the sending units. Then when the sending units are activated, they make a ground connection turning on the indicator lights.
TOOLS

[surfish95747]

I don't know what colors go to what on the '75 harness but I just wired my 1980 cb750k as such:



This worked perfectly.