Update:
A little bit of testing and it's figured out. At least to make it operational. After setting up the test station, it was literally the easiest thing ever. Nearly all the colors match up.
If anyone wants to install a K7 GSXR10000 gauge cluster on their GEN 1 BUSA, the wiring is as follows.
The directions below state the Busa's wiring color first - then the gsxr1000 harness color second:
Constant 12v: Red ~ Red/Blue Stripe
Ignition: Orange/ Yellow stripe ~ Orange/ Green Stripe
Neutral light: Blue ~ blue
Tachometer: Yellow/ blue strip ~ yellow/ blue stripe
Speed sensor (1): Pink ~ Pink
Speed sensor (2): Black/ Red stripe ~ Black/ Red stripe
Fuel Gauge: Black/ light green stripe ~ Black/ light green stripe
FI light (to ECU): Black/ dark green stripe ~ Black/ dark green stripe
Turn signals and high beam indicator light i can't remember the color for and i'm not running back downstairs right now to get them. If you've gotten this far, you'll figure it out... it's 3 more wires...
A few questions still to come:
Fuel gauge: I've heard that the fuel gauge sender is opposite on the k7 1000 from the Busa - meaning full would be empty and empty would be full. Upon my initial test today, the gas tank was obviously in the lifted position and also i'm not sure how much fuel was in there, but the light was flashing. On the K7 1000, this would mean below 1 gallon remaining. Again, not sure if that's accurate right now. After i get the bracket made for the gauge cluster and light i will be able to test drive it. I'll fill up the gas right away and see how far it gets me.
Coolant temp: Gauge read 116'
DIGITALLY after a few minutes of running. It may be working perfectly. We will see.
FI Light: The FI light said CHECK when ignition on/ engine off - as it should. The airbox was off so I have the FI light on but the only codes present were the airbox. Not patching it back together yet, so this is the note to answer this question later.
Tachometer: Tach works perfectly. My note in this regard is about the shift light. I'm pretty sure I can program a shift light now. I will be testing this soon!
Speedo: Up on the rear stand, I had approx 1300rpm idle in first gear and the
DIGITAL gauge read 9mph. This seems correct, but I will be GPS testing it afterwards.
This about wraps it up for now. This was an easy swap. i'm also putting and extra connector in the mix so I can have more points to remove it if needed.
I made the wiring harness custom on this bike with a 'bare bones' harness and a 'lighting' harness. I can remove all the lights along with a harness the runs on the opposite side of the bike. Makes for easier track day transitions and also allowed me to tuck the whole harness behind the frame for the streetfighter conversion.
Be back later