Shovelhead A place to talk about Shovelheads.

Tempermental running

Thread Tools
 
Search this Thread
 
Old Oct 9, 2013 | 02:47 PM
  #1  
Major94's Avatar
Major94
Thread Starter
|
Novice
Joined: Oct 2013
Posts: 19
Likes: 0
From: Omaha, Ne
Default Tempermental running

Ok, she runs fine most of the time. Yesterday at 5pm and today at 1pm, it starts smoking white smoke when i am at idle. Then after that we get a nice little misfire going on. It came out of it after about 3 minutes yesterday, today I drove it 5 miles back home and never stopped misfiring, I put it on the charger hoping its a battery issue on the misfire.

White smoke?
 
Reply
Old Oct 9, 2013 | 05:23 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

it could be a bad plug it could be a bad wire < you have not posted if its a single fire so dont know if the coil is suspect --

thats the easy stuff -- you need to do a conmpression test and if you have a leak down test to determin the engines condition - low compression can and does do just that, and that could be a bunch of things, you need to check it before an answer can be given correctly - johnjzjz
 
Reply
Old Oct 11, 2013 | 05:48 AM
  #3  
Major94's Avatar
Major94
Thread Starter
|
Novice
Joined: Oct 2013
Posts: 19
Likes: 0
From: Omaha, Ne
Default

So I did a compression test.

Front cylinder had 60psi
rear cylinder had 110psi

Im no expert, but im thinking the fron cylinder has some sort of problem.
So, I pull the head and jug off, and the cylinder walls look like dog crap. There are more scratches on the walls of that than I have ever seen.


New plan. Either have my engine bored over and get new cylinder, or buy the S&S stroker kit. I already have a Delkron block, so I can make it work.

What do you guys think?
 
Reply
Old Oct 11, 2013 | 08:00 AM
  #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

if you end up with te stroker idea go low compression 8 to1 -- if you want it to last with the $hit gas we now have -
Sure some one runs 11 1/2 to one 120 inch shovel kick only -

but in the real world you have to be able to use it any time you want - i always liked the 86 if its a 1200 or the 89 if its an 80 inch combo - they make great power and last like a stock motor if taken care of - just my take - johnjzjz
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Z
Engine Mechanical Topics
50
Sep 16, 2018 11:11 PM
Ironyman
Ironhead
11
Oct 23, 2014 07:43 AM
rkingstp77
Touring Models
10
Nov 19, 2013 05:58 PM
bubba 40
Shovelhead
5
Feb 26, 2010 05:55 PM
1200c
Exhaust System Topics
2
Sep 22, 2005 07:00 PM




All times are GMT -5. The time now is 01:37 AM.

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