A buddy has an 09 XR120o that wont start. Insert key, turn to ACC and everything lights up as it should. Turn key to IGN and speedo and tach go out. won't even click when pressing the start button. turn the key off and remove it, the neutral and oil light stay on. I checked the battery, it has good voltage and load tests fine. Pulled IGN fuse to check for voltage and it has voltage on both sides. guessing its the IGN switch. Any other ideas on what to check? Unable to check codes because the gauges go black.

 

Do you hear the fuel pump when the run/Stop switch is set to run?


With IGN ON, battery voltage is supplied to the start relay and ignition fuse. The ignition fuse supplies battery voltage to the engine stop switch and TSM, TSSM or HFSM.

Relay Test A relay can be tested using the motorcycle's 12V battery and a multimeter.
1. Unplug the relay from relay block.
2. Connect relay terminal 85 to the negative battery terminal and relay terminal 86 to the positive battery terminal. NOTE Some relays contain internal diodes. If the applied voltage is not the correct polarity, the diode could be damaged.
3. Test for continuity between terminals 30 and 87. a. A good relay shows continuity (continuity tester lamp on or a zero Ohm reading on the ohmmeter). b. A malfunctioning relay will not show continuity and must be replaced

 

07-09 Sportsters are well known for fuse and relay corrosion problems in the panel, I'd pull all fuses and relays to inspect them and the panel and reinstall with some dielectric grease on the pins.