ninjette.org - View Single Post - Headlight Relay Wiring For 2012 Ninja 250

DannoXYZ · May 28th, 2023, 11:27 AM

trigger red wire to headlight comes from one yellow wire from
stator and is rectified (single phase) by diode.

Do standard stator tests:

1. ohms between stator phases 1-2, 2-3, 3-1
2. ohms between stator wires and ground
3. measure AC output of each phase at idle and 3000rpms

You may have a fried stator from factory shunt-circuit RR driving it at 100% fulltime. If so, best to upgrade to series-circuit RR for greatly reduced operating temps of both stator & RR. Frees up HP and MPG too!

I'll look for headlight relay socket & parts his weekend.

May 28th, 2023, 11:27 AM	#4
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	trigger red wire to headlight comes from one yellow wire from stator and is rectified (single phase) by diode. Do standard stator tests: 1. ohms between stator phases 1-2, 2-3, 3-1 2. ohms between stator wires and ground 3. measure AC output of each phase at idle and 3000rpms You may have a fried stator from factory shunt-circuit RR driving it at 100% fulltime. If so, best to upgrade to series-circuit RR for greatly reduced operating temps of both stator & RR. Frees up HP and MPG too! I'll look for headlight relay socket & parts his weekend.