Ignition Problem

dsand · 07-04-2008, 01:44 PM

I have a 2002 Ultra Classic that has left me stranded twice in the last 1000 miles. Each time there is no spark at either plug but after sitting for anywhere from an hour to as short as 15 minutes the engine will fire up and run smoothly until the next event. I have had it to the dealership and they have found no problems. The engine light is not on and there are no codes. The lights, radio, starter , etc. are operational while the no run condition exists.

Any ideas?

Bud White · 07-04-2008, 08:27 PM

Check the Coil

smitty901 · 07-04-2008, 08:31 PM

coil getting hot and failing is a good first check on this one

glider · 07-04-2008, 10:13 PM

Have you had the main breaker upgraded yet to the 50 amp one?

dsand · 07-04-2008, 10:22 PM

The main breaker has been upgraded to the 50.

glider · 07-04-2008, 10:30 PM

Another place to check is the plug on the ECM, remove it and check for corrosion and that it is installed properly and tight.

dsand · 07-04-2008, 11:01 PM

Have checked the ECM connection and it is good.

dsand · 07-21-2008, 07:46 PM

Replaced coil and system relay. Have put a few miles on bike but too early to tell. No problem after 250 miles. Will update as needed.

Derekj · 07-22-2008, 10:38 AM

Normaly when the coil gets real hot, a wire can become brittle and will shut down the flow of current and when it cools it becomes a conducter again.

07-04-2008, 01:44 PM	#1 (permalink)
dsand New Family Ride: 2002 Ultra Classic Join Date: 2008, Jul 04 Posts: 4	Ignition Problem I have a 2002 Ultra Classic that has left me stranded twice in the last 1000 miles. Each time there is no spark at either plug but after sitting for anywhere from an hour to as short as 15 minutes the engine will fire up and run smoothly until the next event. I have had it to the dealership and they have found no problems. The engine light is not on and there are no codes. The lights, radio, starter , etc. are operational while the no run condition exists. Any ideas?

07-04-2008, 08:27 PM	#2 (permalink)
Bud White Contributor$ Ride: 2008 Road King Classic. Join Date: 2008, Jun 08 Location: Wayne , MI Posts: 529 My Mood:	Re: Ignition Problem Check the Coil

07-04-2008, 08:31 PM	#3 (permalink)
smitty901 Moderators Ride: 2007 Road glide Join Date: 2008, Jan 01 Location: Wisconsin Posts: 2,205 My Mood:	Re: Ignition Problem coil getting hot and failing is a good first check on this one __________________ The Infantry leads the way

07-04-2008, 10:13 PM	#4 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: 2007, Jun 21 Posts: 10,315 My Mood:	Re: Ignition Problem Have you had the main breaker upgraded yet to the 50 amp one? __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me! Last edited by glider : 07-04-2008 at 10:24 PM.

07-04-2008, 10:22 PM	#5 (permalink)
dsand New Family Ride: 2002 Ultra Classic Join Date: 2008, Jul 04 Posts: 4	Re: Ignition Problem The main breaker has been upgraded to the 50.

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07-04-2008, 10:30 PM	#6 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: 2007, Jun 21 Posts: 10,315 My Mood:	Re: Ignition Problem Another place to check is the plug on the ECM, remove it and check for corrosion and that it is installed properly and tight. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

07-04-2008, 11:01 PM	#7 (permalink)
dsand New Family Ride: 2002 Ultra Classic Join Date: 2008, Jul 04 Posts: 4	Re: Ignition Problem Have checked the ECM connection and it is good.

07-21-2008, 07:46 PM	#8 (permalink)
dsand New Family Ride: 2002 Ultra Classic Join Date: 2008, Jul 04 Posts: 4	Re: Ignition Problem Replaced coil and system relay. Have put a few miles on bike but too early to tell. No problem after 250 miles. Will update as needed.

07-22-2008, 10:38 AM	#9 (permalink)
Derekj Start The Engine Ride: 1999 Road King Classic Join Date: 2008, Apr 10 Posts: 36	Re: Ignition Problem Normaly when the coil gets real hot, a wire can become brittle and will shut down the flow of current and when it cools it becomes a conducter again.

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Ignition Problem

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