voltage regulator ????s
Thread Starter
|
Novice
Joined: Jun 2012
Posts: 20
Likes: 0
From: Wisconsin
voltage regulator ????s
so to start this off im assuming that im having a vr problem. coming home from a short trip I stopped and talked with a friend with the bike running and could smell a sulfurish sent. didn't think anything of it till later. got almost home and the bike started missing not able to keep rpms up head light went out came back dim, couldn't get up to speed. limped it home. got home dead batt. so im thinking that vr cooked the batt. im I on the right trac or any other input. btw 99 heritage
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
Slap a volt meter on and see what voltage you get across the battery as you rev the motor.
Over 15v means its over charging (this can destroy the battery) and under 12v means its not charging at all.
If under charging you'll need to check the stator output before assuming its the VR.
Over 15v means its over charging (this can destroy the battery) and under 12v means its not charging at all.
If under charging you'll need to check the stator output before assuming its the VR.
Road Warrior
Joined: Oct 2011
Posts: 1,376
Likes: 36
From: Round Rock, TX
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
First charge the battery and then have it load tested at your local auto shop.
If the battery passes then install it and run Dr hess's checking charging system procedure (in sticky at top of the page)
If it doesn't pass then get a new one and then run the test.
You have to have a good battery installed to do the test.
If the battery passes then install it and run Dr hess's checking charging system procedure (in sticky at top of the page)
If it doesn't pass then get a new one and then run the test.
You have to have a good battery installed to do the test.
Last edited by texashillcountry; Jun 26, 2013 at 08:43 PM.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
First rule, when there is any doubt about the charging system, is to read Dr Hess's sticky, as referred to above! It saves us old hands from rewriting the same advice over and over - oh, darn - I just did that...... 
Thread Starter
|
Novice
Joined: Jun 2012
Posts: 20
Likes: 0
From: Wisconsin
so I ended up getting a new bat. tested with full charge to start. had 16.8 at idle and went up to 18.9 at about 2500. stator didn't go to ground ohms was ok.
Trending Topics
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Looks like a new regulator is in your future.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
You'll wreck that battery in short order with those numbers! Read Dr Hess's sticky....