Engine Mechanical Topics Discussion 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.

really confusing START, but wont stay running....

Thread Tools
 
Search this Thread
 
Old Oct 30, 2016 | 07:30 AM
  #1  
HDsportster99's Avatar
HDsportster99
Thread Starter
|
Tourer
Joined: Feb 2013
Posts: 328
Likes: 0
From: Michigan
Default really confusing START, but wont stay running....

First off, I got a custom soft tail, running the ultima el bruto 127ci.
Yesterday I took the carbs off, and cleaned them 100%, noticed float wasn't set right, and the jets were clogged. I check the gas, and its a nice heavy flow.
Ill start the bike, but then after a minute it will die. After I cleaned the carbs the bike wouldn't start, and needs a jump. I jump it, removed the cables then it dies. The messed up part is, after it died and I called a truck to come take it home I decided to give it one last shot, started right up no problems & didn't die. I rode it home, ran strong, throttle was great. After I got home, and put it away I wanted to try and start it again, and sure enough she started & then died after idle for a bit. IDK, I'm kind of leaning towards a voltage regulator problem? Fuel filter is clean, nothing is clogged, and the carb is getting gas...
Can anyone chime in on this?


Thank you
 
Reply
Old Oct 30, 2016 | 09:40 AM
  #2  
im's Avatar
im
Seasoned HDF Member
Joined: Feb 2007
Posts: 6,086
Likes: 1,128
From:
Default

How about some history: Before you touched the carb, was the bike running?
Before you touched the bike, was the battery OK?
Have you tested the battery?
Have you tested the electrical system when the bike is running?
Have you attached a known good battery (not attached to another vehicle) with cables to see if it stays running? Then tested the electrical system?
Have you checked the 4 ends of your battery cables?
Do NOT jump the bike from a running vehicle.
 
Reply
Old Nov 1, 2016 | 05:48 PM
  #3  
HDsportster99's Avatar
HDsportster99
Thread Starter
|
Tourer
Joined: Feb 2013
Posts: 328
Likes: 0
From: Michigan
Default

Originally Posted by im
How about some history: Before you touched the carb, was the bike running?
Before you touched the bike, was the battery OK?
Have you tested the battery?
Have you tested the electrical system when the bike is running?
Have you attached a known good battery (not attached to another vehicle) with cables to see if it stays running? Then tested the electrical system?
Have you checked the 4 ends of your battery cables?
Do NOT jump the bike from a running vehicle.
Bike is a 2014 custom build.
Ultima 127ci el bruto motor
Just went for about a 45 min ride, and then it happened again.
 
Reply
Old Nov 1, 2016 | 11:03 PM
  #4  
im's Avatar
im
Seasoned HDF Member
Joined: Feb 2007
Posts: 6,086
Likes: 1,128
From:
Default

Lets try again.
1-How about some history: Before you touched the carb, was the bike running?
Was the bike only OK for the 45 minute ride described the ONE day or was the bike OK for several weeks at a time before?
2-Before you touched the bike, was the battery OK? yes, no, maybe how old is battery?
3-Have you tested the battery? how? yes , no
4-Have you tested the electrical system when the bike is running? yes, no
5-Have you attached a known good battery (not attached to another vehicle) with cables to see if it stays running? Then tested the electrical system? yes, no
6-Have you checked the 4 ends of your battery cables? yes, no
Do NOT jump the bike from a running vehicle.
From a distance and the limited information available it might be an electrical problem and not fuel related.
It could be as simple as a bad switch or start button, a bad relay, bad battery, bad connection or a faulty charging system.
But it could also be something associated with the starter or starter circuit.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bluesrider
Dyna Glide Models
20
Jun 7, 2023 09:38 AM
Heather Hradek
Sportster Models
6
Aug 27, 2015 04:55 PM
Raxus
Tri Glide, RG3 & Freewheeler Models
7
Sep 11, 2014 05:21 PM
delane
Sportster Models
18
May 27, 2011 08:29 PM
west texas
Touring Models
10
Apr 22, 2009 10:14 AM




All times are GMT -5. The time now is 04:26 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE