Harley Lost All Power

Question I was riding down the road and my bike started to cut in and out then my Harley lost all power. I got it home and replaced all 3 relays cleaned my started solenoid and replaced my voltage regulator my battery has 10v but when I turn my key to the first position and try to start it all that happens is my relay clicks and when I turn my key to the second position to turn my lights on I lose all power.


Via Email


Answer 10 volts is not sufficient voltage to start a Harley Davidson. If you loose everything when you turn your ignition switch to the 2nd position, you either have a bad switch or a dead short.
Why was the voltage regulator changed? Was the charging system tested?




Related Videos:
Charging System Diagnosis
Electrical Systems

Have more questions? Check out the Tags here and our Q&A index page to find some answers here.

Share tips, start a discussion or ask one of our experts or other students a question.

Make a comment:
500 characters remaining

30 Responses to “Harley Lost All Power”

  1. kevin walsh

    2016 fxdb...no pwerkey on nothing on speedorear light flash,no key fob,bo locks

  2. William F Heuby

    I'm having similar problems. I haven't rode my bike much. Just purchased it in late December. It's almost like a misfire, but will start and idle. Any idea's?

  3. Bob

    06 Dyna super glide hadn't been started in a while. Key on everything good hit start bike kicked forward and all power was then lost. no lights, nothing. Sometimes makes a quiet buzzing noise when key it turned off. Battery and visible fuses good

  4. Ronnie Rippy

    2000 Heritage Softail motor shut off it would restart but run rough got it home turned on ignition and nothing at all is there a master fuse somewhere its no under the seat

  5. William Gerbrick

    stopped today to get some food. came back to bike (2006 fatboy) and tried to start. turned on ignition and pressed start. kicked over then electrical system shut down. no power to gauges at all. switched to acc and power was there but nothing in ignition position. used jumper cables and bike started until cables were removed then blank screen again and bike shut down. trailered home and now looking for so help to explain what might be going on

  6. Wes

    have a 2005 Heritage HD. Been sitting awhile, crank it every so often. Went out to crank and when i turn the run switch on, the lights start blinking and when i blow horn everything shuts off. Battery chargers says it's charged. Any Suggestions ?

  7. raychine393

    Have similar problem 88 FXSTS started missing & backfiring. I changed the ignition module and it ran great for a short time then started missing & backfiring again. Checked bat./good,checked spark/very week, changed module again. Ran great again then bang same as before. I'm stuck!!!

  8. Kevin crippen

    <strong>NB Ticket 18619 Have a 2004 XL 883 CUSTOM sporster. While going down the road lost all power. Got it home replaced fuses and had the battery tested all good. Can't get any power when I turn the key. Totally dead.

  9. Steve emerson

    84 flh losses all electrical turn everything off wait 1 minute then power is restored

  10. Ken

    No power to the ignition