02 sporty, power at coil no spark

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Mar 15, 2015 | 05:46 PM

chrisd0729

Thread Starter

Stage I

Joined: Mar 2015

Posts: 1

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From: Churchville, PA

02 sporty, power at coil no spark

I have an 02 Sportster that died last week at bike week in Daytona. It started and ran fine before, rode all day for a few days... Pulled into a parking lot Monday afternoon and it died as I came to a stop. Couldn't get it started again. Got it home and found I have no spark at the plugs when grounding plug wires to the block. Initially thought it was coil and replaced it but, still no start. Don't want to keep throwing parts at it and looked up what to test. I have power in the wht/blk wire to the coil and a solid 12+ volts on the battery. Starter turns over strong but, no spark at plugs. Exhaust smells strong like gas so no fuel problem.

What's my best plan for testing out ignition module? Or is there something else I should check first?

Thanks in advance

Mar 15, 2015 | 09:48 PM

run1fsr

Outstanding HDF Member

Joined: Oct 2007

Posts: 2,114

Likes: 67

From: USA

Unlikely that your problem is the engine control module. Certainly possible, however, they typically do not fail. A Harley Davidson service manual for your model bike will walk you through the necessary steps to troubleshoot the ignition system.

Mar 16, 2015 | 08:51 AM

mrfikser

Outstanding HDF Member

Joined: Oct 2009

Posts: 2,488

Likes: 30

From: Maryland near DC

if I remember correctly the ignition controller has a light on it that should turn on and off as you turn the motor over.. so pull the cover for the controller and watch... you have 12v to the coil that tells me that you have 12v to the controller...the bell behind the controller that "tells' the controller when to fire may be messed up (it is not uncommon) or the electric eye that reads the gap in the ignition bell may be dirty or bad...no way to tell without taking off the cover and looking...

Mar 16, 2015 | 09:04 AM

mrfikser

Outstanding HDF Member

Joined: Oct 2009

Posts: 2,488

Likes: 30

From: Maryland near DC

here is a blow up of the parts inside the cover..

http://partsfinder.onlinemicrofiche.....asp?make=hdmc

actually the link is funky... click link and go to OEM Harley parts finder and type In year (click) model (click) and electronic
control module.. roll down and you will see the set up

Last edited by mrfikser; Mar 16, 2015 at 09:10 AM.

Mar 16, 2015 | 09:33 AM

roundy

Tourer

Joined: Jan 2012

Posts: 498

Likes: 25

From: Hampshire, UK

How old are the leads? If they are the originals they will be toast by now, mine were.

Mar 16, 2015 | 11:40 AM

HOTLAP

Seasoned HDF Member

Joined: Feb 2007

Posts: 5,067

Likes: 394

From: Edmonton Alberta Canada

^+1, if not google how to check the coils with an ohm meter, also check that the engine is properly grounded to the chassis.

Mar 13, 2017 | 02:37 AM

Blowngasketcasket

Novice

Joined: Mar 2017

Posts: 18

Likes: 0

From: Sanford fl

Hey man have you figured out your issue I have the same problem and I'm trying to figure it out my self. This is a video and run down on my bike also if you look up my username you can see my tread post.. Any help or advice would be awesome!!!...