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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Need some help
(General Harley Davidson Chat)
I've got a 2012 HD Ultra Classic. My voltage regulator went out, I replaced it, started the bike back up, now it has a very strange idol and popping to it. Any suggestions would be appreciated. Kind...
Today 11:41 AM by George2881
You have a DC volt /Ohm meter to check output? Could be it had deeper problems or if all was wrong was regulator, it's still not charging and voltage is low.
Does putting the maintance charger back on when running help? What does the DC voltage show on meter not running and at fast 2000 idle.
Should be 12.6 and 14 or so and below 15. Should not drop below 9.6 cranking. 14 is charging OK. 12.6 is charged. 12.2 is dead. 9.6 shows battery has good amperage and not worn out.
Last edited by Jackie Paper; Nov 19, 2019 at 05:47 AM.
So I went out and bought a new battery, installed it, and fired the bike up. It ran rough for just about 5 seconds, then evened out. System is charging and holding at 14.5 volts, and everything else checks out ok. Thank you for the info.
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