Question about Harley Davidson FXSTB - FXSTBI Night Train Motorcycles
Use an ohm meter to verify that the black wire is indeed a ground (earth). Put the meter in R X 1 and touch either meter lead to the black wire and the other meter lead to ground. The meter should read less than one ohm.
Now, turn the ignition switch on and the headlight on low beam. Put your meter's function switch in DC VOLTS, 20 VOLT or greater scale. Connect the meter's black lead to ground. Touch either the red or the white wire with the red lead and see if you have voltage. Which ever wire has voltage is the low beam power wire. Then switch the light switch to HIGH beam and again check the wires, the "hot" wire is the HIGH beam power wire.
On your new light, you should have a wiring diagram telling you which filament is the low beam and which is the high beam. If you don't, just wire it up and flip the "high/low" beam switch and see if it looks right. If it doesn't, switch the wiring. The new light should have a ground somewhere as well. Since I'm not familiar with this particular light, the ground may be a body ground that relies on physical contact when bolted on the bike.
Posted on Mar 29, 2011
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 22, 2014 | Bikers Choice 3" Extensions Forward...
Jun 10, 2012 | Cobra Radio Communications
Oct 16, 2011 | 2006 Harley Davidson FXST Softail Standard
Oct 02, 2011 | Magnum 257 CB Radio
Jul 12, 2011 | Magnum DeltaForce CB Radio
Apr 07, 2011 | Connex Radio Communications
Feb 28, 2011 | Pass & Seymour #TM874WCC6 15A 120V White...
Mar 07, 2010 | 2002 Honda Accord
Nov 17, 2009 | Cobra 29 LTD CB Radio
Mar 11, 2009 | Connex 3300 240-Channels Base CB Radio
283 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: