Shovelhead A place to talk about Shovelheads.

Ignition Problems

Thread Tools
 
Search this Thread
 
Old Sep 27, 2018 | 04:49 PM
  #21  
Joe12RK's Avatar
Joe12RK
Thread Starter
|
Seasoned HDF Member
10 Year Member
Loved
Community Favorite
Top Answer: 1
Joined: Jun 2012
Posts: 6,132
Likes: 2,525
From: CT/FL
Default

Thanks guys! I tightened the intake clamps a few turns, and opened the idle screw a turn and it is a lot better. I think the electrical friction tape over the o-ring helped. I will have to re-learn how to do it over. But now I'm going to Jewett City for the annual bike night.

I found a .295 intermediate jet, but not sure if it's from an E or a B. Are they the same?
 
Reply
Old Sep 27, 2018 | 05:36 PM
  #22  
johnjzjz's Avatar
johnjzjz
Seasoned HDF Member
15 Year Member
Top Answer: 3
Joined: Nov 2006
Posts: 12,878
Likes: 5,448
From: la la land jerzey
Default

same all the S&S jets fit any carb
 
Reply
Old Sep 27, 2018 | 08:55 PM
  #23  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,094
Likes: 51,354
From: Niles Canyon Ca.
Default

Originally Posted by 98hotrodfatboy
A .031 is big I would try a .0295" I went to a .028" in my E on a modified 74"er and love how crisp the throttle response is..
B's don't like the .0295 they tune out better with the .031, was an E carb you'd be right.
 
Reply
Old Sep 28, 2018 | 06:27 AM
  #24  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Top Answer: 5
Joined: Mar 2010
Posts: 21,005
Likes: 7,540
From: Poolville
Default

Originally Posted by TwiZted Biker
B's don't like the .0295 they tune out better with the .031, was an E carb you'd be right.
I guess with the 1 7/8" diameter it would need a little more fuel... Is the B a tapered venturi like the E or G?
 
Reply
Old Sep 28, 2018 | 07:27 AM
  #25  
Racepres's Avatar
Racepres
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,564
Likes: 3,317
From: Cental, MI
Default

Originally Posted by Joe12RK
Thanks guys! I tightened the intake clamps a few turns, and opened the idle screw a turn and it is a lot better. I think the electrical friction tape over the o-ring helped. I will have to re-learn how to do it over. But now I'm going to Jewett City for the annual bike night.

I found a .295 intermediate jet, but not sure if it's from an E or a B. Are they the same?


I guess I thought the '79 utilized the Rubberband Manifolds???
If O-ring, I use 3M electrical tape [one wrap, not friction] Haven't had a leak in Years, but a mess when replaced...
 

Last edited by Racepres; Sep 28, 2018 at 07:33 AM.
Reply
Old Sep 28, 2018 | 03:37 PM
  #26  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,094
Likes: 51,354
From: Niles Canyon Ca.
Default

Originally Posted by 98hotrodfatboy
I guess with the 1 7/8" diameter it would need a little more fuel... Is the B a tapered venturi like the E or G?
Has more to do with no accel pump than venturing size , fatter jet helps overcome the lean spot the accelerator pump usually handles. Ran B's for years, still have several in box stashed.
 
Reply
Old Oct 1, 2018 | 07:35 PM
  #27  
Joe12RK's Avatar
Joe12RK
Thread Starter
|
Seasoned HDF Member
10 Year Member
Loved
Community Favorite
Top Answer: 1
Joined: Jun 2012
Posts: 6,132
Likes: 2,525
From: CT/FL
Default

I'm glad it was running badly with points because it made me check the valves and intake and fix them. Now with a new ignition module it runs great! Even better than before

Thanks for all of your help!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1988lowrider
EVO
11
Jun 1, 2018 03:31 PM
Rustygold
Ignition/Tuner/ECM/Fuel Injection
0
Jul 15, 2016 11:22 PM
bchrist320
General Harley Davidson Chat
3
Jun 10, 2013 09:42 PM
daholken
Softail Models
1
Mar 28, 2009 09:46 PM
zenwarrior
Ignition/Tuner/ECM/Fuel Injection
4
May 19, 2007 11:21 AM




All times are GMT -5. The time now is 03:42 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE
story-9
The Best and Worst Harley-Davidson Moves of 2025

Slideshow: A clear-eyed look at what actually worked for Harley this year, and what quietly undermined its progress.

By Verdad Gallardo | 2025-12-29 17:10:48


VIEW MORE