Nightrider.com Performance Products
B. Serial In connection, 2.5mm stereo (female) marked as IN
C. Serial Out connection, 2.5 mm stereo (female) marked as OUT.
4. Connect the RED wire to a switched 12V source in your vehicle. A switched 12V source goes on as soon as the ignition on the ignition is on. Make sure the connection is fused with a minimum fuse size of 10A for two LC-1’s. Nightrider provides a Fuse Tap “add a circuit” which can provide power to the LC-1’s without cutting OEM wiring. Any switched circuit can be used, however the Lighting circuit makes a good choice. Make sure to put the “pig tail” end of the Fuse Tap on the fused side of the circuit. This can be checked by removing the extra circuit fuse, turning on the ignition switch on the bike and checking for voltage at the pig tail. If the pig tail has power, reverse the fuse tap. Now you can install the 10A fuse in the Fuse Tap.
5. The BLUE and WHITE wires should all be grounded to the same ground source. Optimally, these (and any other MTS device ground) will be soldered to the same lug, and connected to a single point. When this isn’t possible, connect each one to a separate lug, and attach in close proximity. Multiple lugs on the same bolt is not optimal, and can result in
unwanted signal “noise.” When possible, soldering is always better than crimping. Please see chapter 2.3 for more information on Electrical Grounding Concerns.
6. LC-1 Outputs: A. the YELLOW (Analog out 1) connects to the Blue wire on the HD O2 wiring Harness Adapter. The Grey HD O2 wiring Harness Adapter wire goes to ground. B. optional BROWN (Analog out 2) can be connected to the analog inputs of other devices such as data loggers, ECU's, or gauges. If either one or both of these wires are not being used isolate and tape the wire(s) out of the way. Analog output two is setup as 0V = 7.35 AFR and 5V = 22.39 AFR. This is the wideband sensor output. Output from this wire can go to a Nightrider supplied digital Air Fuel Gauge or to the WBO2 input wires on the Scan Tool. Output can also go to any data acquisition device. Note: The LC-1’s heater ground and system ground wires should share the same
grounding location of the analog input’s ground.
7. Optionally connect a momentary push-button switch between ground and the BLACK calibration wire. Please refer to section 2.1.
8. Nightrider recommends you connect the indicator LED (1.2-2.2V, 1-30mA is recommended) between the calibration wire and ground. Please refer to section 2.1
The LED will communicate the LC-1’s status. To monitor LC-1 status, connect the red wire (Anode) of the included LED to the calibration wire (black) of the LC-1 and connect the black wire (Cathode) of the LED to the ground wire of the momentary switch. The grounds to both the cathode side of the LED and the Push button should be connected with the Heater ground.
a. Note: The included LED will fit the following hole size and panel thickness: a 5/32” (0.155” - 0.158”) hole size and a panel thickness of 28–16gauge (0.031” - 0.062”).
b. Optionally, any 1.2V - 2.2V (1mA- 30mA) LED may be used. A typical LED has 2 wires called Anode and Cathode. The Cathode side is typically the shorter of the 2 wires or the black wire.
Pressing the push-button or connecting the black wire to ground starts a free air calibration process in the LC-1. MAKE SURE THE SENSOR IS IN FRESH/FREE AIR FOR THAT. See chapter 4 of the LC-1 Manual for more details.
Note: Pre-programmed LC-1 units provided by Nightrider.com have already been calibrated. These units are ready to install.
SP Mullen LLC – Oldsmar, FL 34677 – 727.420.0896Page 2 of 8