General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

Dumbfounded...

Thread Tools
 
Search this Thread
 
Old Nov 23, 2019 | 07:11 PM
  #1  
Jekyll08's Avatar
Jekyll08
Thread Starter
|
Stage IV
Joined: Oct 2019
Posts: 4
Likes: 3
From: North Carolina
Default Dumbfounded...

I'm at my rope's end and hoping someone on here might know what the issue is...

Bike: 2016 Dyna Low Rider with short shots exhaust

Issue: When I was riding the other day my bike randomly started uncontrollably revving up to about 3000 rpm at idle with the clutch in. It came back down to normal idle on its own and the issue occurred a couple more times on the way back home. Once I got home I shut it off for about ten minutes and then tried to start it back up and it would just stall out after starting. I waited about an hour after the bike had cooled down and went to try and start it again and it started right up, idling normally. So I took it for a little test ride to see if the issue would repeat, and after about 5 minutes of riding the bike would stall out when I would come to a stop and would not idle. The issue has persisted for the past week.

There is no engine light and no DTCs. Spark plugs are new. I drained the fuel tank and refilled with new gas (in case bad gas was in the tank), replaced fuel filter, and fuel regulator. Fuel pressure is good, so fuel pump is good. I checked the idle stop screw and it hasn't moved.

Any ideas on what the issue could be? I'm completely perplexed...
 
Reply
Old Nov 23, 2019 | 07:14 PM
  #2  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,122
Likes: 51,434
From: Niles Canyon Ca.
Default

Fuel pump intermittent or an intake leak be my guesses, good hunting.
 
Reply
Old Nov 23, 2019 | 07:37 PM
  #3  
Bone Doc's Avatar
Bone Doc
Seasoned HDF Member
10 Year Member
Joined: Oct 2012
Posts: 13,104
Likes: 13,045
From: Texas, USA
Default

Relax and take a deep breath. When you have problems, don't start randomly replacing parts. You are just wasting money. Diagnose the problem first and then repair it.

From what you describe, I am leaning towards a faulty throttle position sensor (TPS). It is a common sensor to go bad. Fortunately, it is an inexpensive part.

 
Reply
Old Nov 23, 2019 | 07:43 PM
  #4  
Bluesrider.df's Avatar
Bluesrider.df
Grand HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2015
Posts: 4,355
Likes: 1,967
From: PA
Default

Originally Posted by Bone Doc
Relax and take a deep breath. When you have problems, don't start randomly replacing parts. You are just wasting money. Diagnose the problem first and then repair it.

From what you describe, I am leaning towards a faulty throttle position sensor (TPS). It is a common sensor to go bad. Fortunately, it is an inexpensive part.
The TPS was the first thing that popped into my mind.
 
Reply
Old Nov 23, 2019 | 07:54 PM
  #5  
Qdog002's Avatar
Qdog002
Grand HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2012
Posts: 3,515
Likes: 887
From: Upstate New York
Default

Faulty IAC maybe?
 
Reply
Old Nov 23, 2019 | 08:30 PM
  #6  
martinj's Avatar
martinj
Club Member
Veteran: Air Force
10 Year Member
Liked
Community Favorite
Joined: Mar 2016
Posts: 11,688
Likes: 22,266
From: Clearwater, Idaho
Riders Club Member
Default

Originally Posted by Bone Doc
Relax and take a deep breath. When you have problems, don't start randomly replacing parts. You are just wasting money. Diagnose the problem first and then repair it.

From what you describe, I am leaning towards a faulty throttle position sensor (TPS). It is a common sensor to go bad. Fortunately, it is an inexpensive part.
Originally Posted by Bluesrider.df
The TPS was the first thing that popped into my mind.
Yep. Check the connector on the TPS and make sure it isn't loose before going any further. The wire routing makes this a fairly common occurrence, and it happened to me.
 
Reply
Old Nov 24, 2019 | 11:40 AM
  #7  
nevil's Avatar
nevil
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2008
Posts: 9,282
Likes: 1,139
From: southeast PA
Default

Cleaning the IAC may be all you need, but the TPS would be a good suspect as well.
 
Reply
Old Nov 24, 2019 | 05:49 PM
  #8  
Tampa Fatboy's Avatar
Tampa Fatboy
Seasoned HDF Member
Joined: Feb 2012
Posts: 13,456
Likes: 10,452
From: Sunshine State
Default

We all learn a little when those asking come back with the correct answer.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DBurns INC
General Harley Davidson Chat
11
Feb 12, 2019 09:42 AM
Musician
Touring Models
4
Jul 3, 2015 12:10 PM
imbthree
Dyna Glide Models
9
Jul 18, 2011 08:10 AM
tmultra
Touring Models
23
Oct 8, 2009 06:45 PM
jcknapp
Softail Models
4
Feb 17, 2006 07:15 PM




All times are GMT -5. The time now is 11:37 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