WIRING INSTRUCTIONS: Koso RX1N
Wiring up the rx1n is dead easy to do, and no modding to any current loom is needed, just splicing in some wires using the supplied "crunch" splices. Some soldering may be required for a couple of wires (power) as the loom took the supply off is too far away.
POWER WIRES.
Ok, never seen an nc35 wiring diagram, but for the nc30 this is where i took power from. On the riders right hand side of the bike, just above the dipstick, are a few plugs.
One of the plugs has 3 wires in it. This will lead from this plug up to the ignition barrel with a red, red/black and a blue/orange wires.
Splice in the rx1n red with the bikes red wire on near this plug.(Permanent 12v) splice the rx1n brown (not brown with bullet connector) into red/black (ignition)
Now, while on this side, somewhere on the frame, find a good clean point to attach the rx1n black wire to. (negative) MAKE SURE ITS A GOOD CONNECTION!! this will also determine sensor values, as the unit uses a common single earth for all parts.
SPEED SENSOR
For the speed, either take it off the front or rear wheel, however you can mount it good, just read the instructions.
RPM
On the nc30, I took the supplied wire with a connector to go inline with the 12v source to a coil, just use the wire and connect in between one coil point (front is easier)
TEMPERATURE
The supplied temperature sensors (2 of them) are 1/8 npt or pt (bad engrish manual) thread size, and screws sraight into the oem hole for the oem temp guage. Cant use the oem sensor, so just unscrew (located very close to power plug as above) it and replace with one of the new ones. Using the supplied plugable wire, connect up to the rx1ns loom and done.
You can use the 2nd one to read oil temp, and has provisions in the dash to show oil and water temps at once. (i am tapping my sump plug when i get new one from shop)
INDICATORS
all you need to do here, is splice one of the 2 wires heading out to your indicators. Blue on rx1n to the left indicator wire on bike, and orange on rx1n to right wire on bike. (coincidentally on the bike out to indicator are blue and orange!)
OIL PRESSURE
For oil pressure, this needs to be connected to the negative side of the wire to be correct, or it will show opposite to what it should. On the plug that went to the speedo unit, before the plug pull back some tape and find the blue/red stripe wire, and splice the grey rx1n wire into it.
NEUTRAL
Neutral is the same as oil pressure needing a negative to function properly. splice the rx1n white wire to the light blue/red wire, at same point on plug as oil pressure
HIGH BEAM
splice the highbeam light wire, rx1n yellow, at the same point as oil pressure and neutral on the blue wire.
BEFORE
ATTEMPTING THIS INSTALLATION, DOWNLOAD A WIRING DIAGRAM FOR YOUR SPECIFIC NC30 OR DIFFERENT BIKE, AND USING A MULTIMETER (EVEN WITH SAME COLOUR WIRES AS MENTIONED) MAKE SURE THE +/- IS WHAT IS REQUIRED, AS 12V ON A NEG WIRE CAN HURT THE UNIT.....
Courtesy of mojododo(400GB Forums)
