EVO All Evo Model Discussion

Tach not reading right?

Thread Tools
 
Search this Thread
 
Old Dec 13, 2015 | 01:45 PM
  #1  
800screws's Avatar
800screws
Thread Starter
|
Tourer
Joined: Sep 2013
Posts: 447
Likes: 7
From: new york
Default Tach not reading right?

I just installed a s s super e carb and a crane single fire ignition on my 89 fltc. I had to splice in that Harley harness so I could plug in the crane cdi. Runs awesome but the tach only goes up to 1500 Rpms. I'm sure it has to do with something that I've done. What should I be checking? Is the tach electrical rather than a cable like the speedo?
 
Reply
Old Dec 13, 2015 | 02:03 PM
  #2  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
Default

Did you install the adapter you have to use with a single fire ignition?
 
Reply
Old Dec 13, 2015 | 02:22 PM
  #3  
800screws's Avatar
800screws
Thread Starter
|
Tourer
Joined: Sep 2013
Posts: 447
Likes: 7
From: new york
Default

Yup. It was the whole kit. The Harley wiring harness. Cdi coil plug wires.
 
Reply
Old Dec 13, 2015 | 02:28 PM
  #4  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
Default

The tach is triggered off the green wire.
And yes it's electrical not mechanical.

Can you post a link to what exactly you put on your bike?
 
Reply
Old Dec 13, 2015 | 04:59 PM
  #5  
800screws's Avatar
800screws
Thread Starter
|
Tourer
Joined: Sep 2013
Posts: 447
Likes: 7
From: new york
Default

yup...heres the cdi
http://www.ebay.com/itm/Harley-Touri...1V71-p&vxp=mtr
I also installed the crane single fire coil.....and spliced in the Harley add on wiring harness so that has the plug like the newer Harleys to plug in the cdi...


ill trace out the green wire and see whats up...its getting a reading but it must not be a good connection somewhere cause its only going up to 1500rpms and when crusing its at 1000
 
Reply
Old Dec 13, 2015 | 06:21 PM
  #6  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
Default

Originally Posted by 800screws
yup...heres the cdi
http://www.ebay.com/itm/Harley-Touri...1V71-p&vxp=mtr
I also installed the crane single fire coil.....and spliced in the Harley add on wiring harness so that has the plug like the newer Harleys to plug in the cdi...


ill trace out the green wire and see whats up...its getting a reading but it must not be a good connection somewhere cause its only going up to 1500rpms and when crusing its at 1000
Not what I was talking about.
When I bought my Drag mini tach it came with a small box that I was supposed to use if I ran a single fire cam.
 
Reply
Old Dec 13, 2015 | 06:24 PM
  #7  
89FLHTC's Avatar
89FLHTC
Supporter
5 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2015
Posts: 1,170
Likes: 32
From: Ft.Worth, Texas
Supporter
Default

Follow these directions.
http://www.cranecams.com/uploads/ins.../90003100a.pdf
 
Reply
Old Dec 14, 2015 | 05:08 AM
  #8  
800screws's Avatar
800screws
Thread Starter
|
Tourer
Joined: Sep 2013
Posts: 447
Likes: 7
From: new york
Default

Ah ha! The brown wire! I thought I did wire it like the instructions said but I'll give it another look. That's gotta be it though. Thanks
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

Jason Momoa Is Turning Classic Harleys Into PHEVs

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-3

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-4

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-5

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
Old Dec 14, 2015 | 05:54 AM
  #9  
800screws's Avatar
800screws
Thread Starter
|
Tourer
Joined: Sep 2013
Posts: 447
Likes: 7
From: new york
Default

Just checked. I f'd up. Didn't put it to the brown wire out of the cdi. It's the green wire that comes out of the cam cover right?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CJD197
Sportster Models
4
Sep 28, 2025 11:44 AM
leafman60
Touring Models
6
Feb 1, 2021 06:27 PM
trip59
Ignition/Tuner/ECM/Fuel Injection
0
Feb 13, 2012 03:09 PM
dkfxr
EVO
10
Jul 1, 2011 01:03 PM
Mrrick
Shovelhead
2
Aug 24, 2009 12:26 PM




All times are GMT -5. The time now is 08:21 PM.

story-0
Jason Momoa Is Turning Classic Harleys Into PHEVs

Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.

By Verdad Gallardo | 2026-06-10 17:18:58


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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