Harley Davidson Forums

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.

Disconnect Automatic Compression releases?

Thread Tools
 
Search this Thread
 
Old Mar 23, 2016 | 06:17 PM
Share
  #1  
swampking's Avatar
swampking
Thread Starter
|
Road Captain
Joined: Jul 2006
Posts: 548
Likes: 0
From: iowa
Default Disconnect Automatic Compression releases?
I have a set of S&S EZ Start Cams I would like to try out on my 2012 Road Glide with a 103. Can I simply disconnect the ACRs to use the EZ start cams. Will I get any codes?
 
Reply
0
Old Mar 23, 2016 | 09:26 PM
Share
  #2  
misfitJason's Avatar
misfitJason
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2010
Posts: 6,849
Likes: 1,389
From: Florida
Default
You can disconnect them. I don't know about codes though
 
Reply
0
Old Mar 23, 2016 | 09:33 PM
Share
  #3  
Tedwilliams09's Avatar
Tedwilliams09
Road Captain
Joined: May 2015
Posts: 627
Likes: 47
From: Nunda
Default
Will your tuner allow you to turn them off?

I know my screamin eagle will.
 
Reply
0
Old Mar 24, 2016 | 07:24 AM
Share
  #4  
kishstl's Avatar
kishstl
Road Master
Joined: Feb 2007
Posts: 781
Likes: 35
From: St Louis
Default
If you have a cam and ACR's alread, why are you wanting EZ start cams? Not flaming, just wondering.
 
Reply
0
Old Mar 24, 2016 | 10:04 AM
Share
  #5  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,780
Likes: 2,609
From: san antonio
Community Team
Default
Originally Posted by swampking
I have a set of S&S EZ Start Cams I would like to try out on my 2012 Road Glide with a 103. Can I simply disconnect the ACRs to use the EZ start cams. Will I get any codes?
So, you already have the EZ start cams? I assume that you are concerned that there may be starting issues with the EZ starts and ACRs? I don't think so; it should start easy with no issues. Anyway, the ACRs can be turned off with some fuel management systems or you can have the dealer turn them off if necessary.
 
Reply
0
Old Mar 24, 2016 | 03:40 PM
Share
  #6  
GibsonSG's Avatar
GibsonSG
Cruiser
Joined: Jan 2016
Posts: 160
Likes: 14
From: North of Denver
Default
If you simply unplug the ACR's the ECU/ECM should throw codes. However it shouldn't be a issue for the starting system because the EZ-starts just make it a mechanical process.

...best option is to disable the ACR option via the fuel controller and save the map update.
 
Reply
0
Old Mar 24, 2016 | 04:35 PM
Share
  #7  
Tedwilliams09's Avatar
Tedwilliams09
Road Captain
Joined: May 2015
Posts: 627
Likes: 47
From: Nunda
Default
Why would it hurt to leave the ACR activated??
 
Reply
0

Trending Topics

Old Mar 24, 2016 | 04:37 PM
Share
  #8  
swampking's Avatar
swampking
Thread Starter
|
Road Captain
Joined: Jul 2006
Posts: 548
Likes: 0
From: iowa
Default
I have been told it causes hard starting
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-1

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-2

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-3

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-4

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-9

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
Old Mar 24, 2016 | 07:10 PM
Share
  #9  
joe40x's Avatar
joe40x
Road Warrior
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2014
Posts: 1,623
Likes: 698
From: nowhere
Default
I've had mine in for about 6 months and have had no problems...ACR's on and easy start cams...starts right up and no codes.
 
Reply
0
Old Mar 25, 2016 | 08:55 AM
Share
  #10  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,780
Likes: 2,609
From: san antonio
Community Team
Default
No need to disable the ACRs. IIRC, the ECM controls how much to hold the ACRs open to achieve the required cranking speed, so the ECM will just not open the ACRs as much as it would without the EZ start cams.
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cams
michaelhd1340
Touring Models
4
Apr 6, 2018 12:58 AM
S&S eazystart cams with ACRS ?
guesscrazy
Engine Mechanical Topics
4
Sep 5, 2016 05:25 AM
cams easy start for TC
jbrelr21
Engine Mechanical Topics
15
Mar 6, 2015 08:42 PM
Anyone know what cams these are?
xmeter
General Harley Davidson Chat
2
Aug 24, 2009 08:00 AM
Screaming Eagle 251 cams
capt42a
Exhaust System Topics
22
Mar 1, 2009 06:46 PM
Back to Subforum
Engine Mechanical Topics
View Next Unread
Poll: Geardrive cams, do it yourself?




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 09:23 AM.

story-0
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-1
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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