Shovelhead A place to talk about Shovelheads.

Internal throttle

Thread Tools
 
Search this Thread
 
Old May 5, 2021 | 03:50 PM
  #1  
sleighcrane's Avatar
sleighcrane
Thread Starter
|
Tourer
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2013
Posts: 412
Likes: 159
From: Parksville B.C.
Default Internal throttle

Does increasing the length of the slot in the handlebar allow the throttle to open further to allow my A/M carb to fully open? Would I have to increase the spiral as well? Looks like I am only getting perhaps 80% throttle opening presently and really want to keep original bars with the internal. Thanks
 
Reply
Old May 5, 2021 | 04:55 PM
  #2  
johnjzjz's Avatar
johnjzjz
Seasoned HDF Member
15 Year Member
Top Answer: 3
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
Default

Depends on the carb - would not re invent the wheel as its not sprung and sticking in the full position would be a thing

i have re located the Ferrell inward to change the travel to less - its a thing

are you sure your all the way in before to pull out - also the receiver is also the distributor side one as it pulls not pushes
 
Reply
Old May 5, 2021 | 05:13 PM
  #3  
sleighcrane's Avatar
sleighcrane
Thread Starter
|
Tourer
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2013
Posts: 412
Likes: 159
From: Parksville B.C.
Default

The carb is a super E and it seems that the pull from the slider in the bar is less than what the butterfly requires for full bore. All of the components in the bars are working quite well just short of overall "throw" so to speak
 
Reply
Old May 5, 2021 | 05:21 PM
  #4  
johnjzjz's Avatar
johnjzjz
Seasoned HDF Member
15 Year Member
Top Answer: 3
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
Default

We use a Bendix carb if the linkert is not in repairable condition - the Bendix had a internal set up so it works

 
Reply
Old May 6, 2021 | 07:26 AM
  #5  
Architect's Avatar
Architect
Seasoned HDF Member
15 Year Member
Joined: Apr 2010
Posts: 9,568
Likes: 7,936
From: Long Island, New York
Default

I am running an internal throttle (stock) with a S&S Super E on my 1970. Cable itself is custom. I have no issue with the amount of travel. I am wondering if you are having a different issue?
 
Reply
Old May 6, 2021 | 08:16 AM
  #6  
johnjzjz's Avatar
johnjzjz
Seasoned HDF Member
15 Year Member
Top Answer: 3
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
Default

Billy some years the left receiver has a shorter throw in the pull then others

moding them is done but you cant fake it it needs to be machined on a rotating table Towards the handlebar - you move the starting point

time it takes to make it happen
 
Reply
Old May 6, 2021 | 06:26 PM
  #7  
sleighcrane's Avatar
sleighcrane
Thread Starter
|
Tourer
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2013
Posts: 412
Likes: 159
From: Parksville B.C.
Default

I think that I am losing some action in a couple of different spots maybe in flex of the softer wire core. But it doesn't sound like altering the slot is an option. Bike may last longer that way! Thanks for the advice
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1Felix1
2014-2024 Touring Models
6
Mar 24, 2019 11:51 AM
doggiedave
The General Motorcycle Forum
32
Jun 16, 2009 10:25 PM
tl vette
Touring Models
0
May 7, 2008 09:24 PM
somehuh
Exhaust System Topics
3
Mar 16, 2008 11:35 PM
veeman129
Ignition/Tuner/ECM/Fuel Injection
1
May 9, 2007 01:31 PM




All times are GMT -5. The time now is 03:37 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