Harley Davidson Forums

EVO All Evo Model Discussion

s&s jetting

Thread Tools
 
Search this Thread
 
Old Jul 13, 2012 | 10:41 AM
Share
  #1  
clayfatboy's Avatar
clayfatboy
Thread Starter
|
Novice
Joined: Jul 2012
Posts: 23
Likes: 0
From: knoxville iowa
Default s&s jetting
I have a 80ci evo with a s&s super e. Im running the ev27 cam and sampson ripsaw pipes (come factory with no baffles) i live in iowa. Right now im running a 70 main jet and .295. I was running a 72 main jet and carb breaking up at 3/4 to full throttle. Just wanting to know what i should be running for jets. Ive set carb the way s&s says to. My plugs are black around the metal thread part after riding it yesterday.
 
Reply
0
Old Jul 13, 2012 | 11:18 AM
Share
  #2  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Default
Black on the threads is no big deal. You need to get a tan color on the ceramic in the middle of the plug.
 
Reply
0
Old Jul 13, 2012 | 11:48 AM
Share
  #3  
clayfatboy's Avatar
clayfatboy
Thread Starter
|
Novice
Joined: Jul 2012
Posts: 23
Likes: 0
From: knoxville iowa
Default
S&s tech said 31 and 74, ive never changed the int jet yet. Sounds a little rich to me?
 
Reply
0
Old Jul 13, 2012 | 11:53 AM
Share
  #4  
jokenroll's Avatar
jokenroll
Road Captain
Joined: Nov 2007
Posts: 517
Likes: 6
From: Ottawa, ON
Default
yours is probably ok, as long as the screw is b/w 1 and 2 turns
 
Reply
0
Old Jul 13, 2012 | 12:56 PM
Share
  #5  
clayfatboy's Avatar
clayfatboy
Thread Starter
|
Novice
Joined: Jul 2012
Posts: 23
Likes: 0
From: knoxville iowa
Default
It runs like crap 3/4 to full throttle.
 
Reply
0
Old Jul 13, 2012 | 01:04 PM
Share
  #6  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Default
Originally Posted by clayfatboy
It runs like crap 3/4 to full throttle.
Is that with the 70 main also?
 
Reply
0
Old Jul 13, 2012 | 01:06 PM
Share
  #7  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Default
Originally Posted by clayfatboy
S&s tech said 31 and 74, ive never changed the int jet yet. Sounds a little rich to me?
I ran a 31 intermediate until just recently when I went back to the 29.5.

Did you adjust the carb without riding it?

What color is the ceramic inner post on your plugs?
 
Reply
0

Trending Topics

Old Jul 13, 2012 | 01:07 PM
Share
  #8  
clayfatboy's Avatar
clayfatboy
Thread Starter
|
Novice
Joined: Jul 2012
Posts: 23
Likes: 0
From: knoxville iowa
Default
Yes ive also put a new acc pump in it.
 
Reply
0
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
Old Jul 13, 2012 | 01:07 PM
Share
  #9  
jokenroll's Avatar
jokenroll
Road Captain
Joined: Nov 2007
Posts: 517
Likes: 6
From: Ottawa, ON
Default
Originally Posted by clayfatboy
It runs like crap 3/4 to full throttle.
Then change your main accordingly, but the intermediate sounds ok
 
Reply
0
Old Jul 13, 2012 | 01:08 PM
Share
  #10  
clayfatboy's Avatar
clayfatboy
Thread Starter
|
Novice
Joined: Jul 2012
Posts: 23
Likes: 0
From: knoxville iowa
Default
Tried a 74 and 76, about ready to find a cv and intake
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 05:19 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