I replaced my cracked OEM gauge (water was getting inside and it was losing functionality) with a Trail Tech Vapor and I figured some may benefit from what I was able to figure out as far as wiring.
BLACK/YELLOW GROUND
LT GREEN/RED ? POWER WITH KEY (maybe illumination for cluster)
RED SPEED SENSOR
GREEN/RED SPEED SENSOR
LT GREEN NEUTRAL (GROUND)
WHITE/BLK DOTS CONT POWER
GREY RIGHT BLINKER POSITIVE
GREEN LEFT SIGNAL POSITIVE
RED BLACK HIGH BEAM POSITIVE
I am using the trail tech to run discreet turn signal lights and neutral indicator.
From what I've read the ECU sends a signal to the cluster to trigger the Fuel, Temp and Check engine light if anyone has any other info I am all ears! I would love to have the fuel warning light but I can live without it.
I am running a temp probe on the trail tech so I can use the internal warnings built in there for temp warnings.
The good: Two light warning for shift lights, yellow on the left then red on the right, these are also the temp warning lights same setup.. warn/danger essentially. You can set the ODO through the advanced menu and it's easy to adjust the speedo for different size tires. It can run off the button cell battery, but if you want the brighter backlight you need acc power. It's much smaller than the OEM unit but easily replaceable and a lot cheaper!
The OK: it comes with rotor bolts with magnets for the wheel speed sensor. I installed that and the sensor as far down on the fork guard, which was "in the zone".. but it didn't pickup the magnet, so I ended up gorilla gluing a small magnet on the rotor, and it works just fine.
The handlebar mount would have been right over my ignition since I have a small rally tower with my quadlock where I want it, so I ended up hacking the bar mount and mounting it down where the OEM gauge went and it works ok.
The lights are nice, you can add two or four additional lights, but.. they are designed to work on (+) circuits . There is a harness for each group of two lights which means they share a ground on the bike side of the harness so for the neutral light it is a (-) circuit so you can't use the harness for that light since you need to separate the ground.
