Author Topic: spark then no spark  (Read 430 times)

0 Members and 1 Guest are viewing this topic.

Offline hogmandon

  • Full Member
  • Posts: 481
spark then no spark
« on: February 11, 2018, 04:08:59 PM »
Just put my bike back together. before trying to start it I turned it over with plugs out to check for spark. Had good spark so put them back in and tried to start it. No good it turned over fine but didn't fire off. Pulled plugs a gain to check for gas and they were wet. checked again for spark and nothing. Everything is plugged in fine. Is there a fuse in line or any idea where to look I am stuck

Offline Harley_Cruiser Rocker Lockers

  • Premium Vendor
  • Full Member
  • *****
  • Posts: 1425
  • Country: us
  • www.RockerLockers.com
    • Rocker Lockers
Re: spark then no spark
« Reply #1 on: February 11, 2018, 04:17:47 PM »
What year make bike what was unplugged, coil ign?
www.Rockerlockers.com
Call for dealer discount

Offline fbn ent

  • Site Supporter
  • Full Member
  • *****
  • Posts: 3863
  • Country: ca
Re: spark then no spark
« Reply #2 on: February 11, 2018, 04:24:10 PM »
Probably his '06 RG...maybe?
'02 FLTRI - 103" / '84 FLH - 88"
Hinton, Alberta

Offline hogmandon

  • Full Member
  • Posts: 481
Re: spark then no spark
« Reply #3 on: February 12, 2018, 04:57:44 AM »
06 RG Just did a 107 all bore every thing was unplugged and put back.  Had spark and lost it very strange

Online Hossamania

  • Site Supporter
  • Full Member
  • *****
  • Posts: 13128
  • Country: us
Re: spark then no spark
« Reply #4 on: February 12, 2018, 05:07:21 AM »
Check your connectors again. Check fuses.
Start with the simple things first.
My boss always says mean things to me,
like, "You're late."

Offline Fisherking

  • Full Member
  • Posts: 189
  • Country: ca
Re: spark then no spark
« Reply #5 on: February 12, 2018, 05:55:57 AM »
Check your connectors again. Check fuses.
Start with the simple things first.
Did you have plugs in the heads when you checked for spark. usually they won't spark without compression? If they sparked with out there being compression I would look there .

 F.K.

Offline Harley_Cruiser Rocker Lockers

  • Premium Vendor
  • Full Member
  • *****
  • Posts: 1425
  • Country: us
  • www.RockerLockers.com
    • Rocker Lockers
Re: spark then no spark
« Reply #6 on: February 12, 2018, 09:47:05 AM »
Unplug your coil, center wire, w/b Should be hot with key on, that wire comes from the on off switch. Other two wires are ground from the ignition module. How are you checking for spark? Like fk said needs to have compression on the newer bikes not sure what year that started. Are your wires backwards, front rear?
www.Rockerlockers.com
Call for dealer discount

Online louloupa

  • Full Member
  • Posts: 60
  • Country: fr
Re: spark then no spark
« Reply #7 on: February 12, 2018, 10:05:06 AM »
1450 have a cam position sensor , the 96 have not . Instead , you need compression to make ignition .

Offline fbn ent

  • Site Supporter
  • Full Member
  • *****
  • Posts: 3863
  • Country: ca
Re: spark then no spark
« Reply #8 on: February 12, 2018, 10:29:02 AM »
Check your connectors again. Check fuses.
Start with the simple things first.

 :agree:

Can't remember when they went to needing compression to spark....my '02 doesn't.....no cam position sensor either.

Start back at the beginning and double check everthing.....ecm has a fuse but if the injectors are doing their job it's live.

Keep updating.
'02 FLTRI - 103" / '84 FLH - 88"
Hinton, Alberta

Offline hogmandon

  • Full Member
  • Posts: 481
Re: spark then no spark
« Reply #9 on: February 12, 2018, 11:22:10 AM »
Didn't think of that I left one plug in when I checked for spark. They were both out when I checked the second time when I had no spark. Will recheck with 1 plug in.
Thanks for the help will post results

Offline fbn ent

  • Site Supporter
  • Full Member
  • *****
  • Posts: 3863
  • Country: ca
Re: spark then no spark
« Reply #10 on: February 12, 2018, 11:25:54 AM »
Put both plugs in and check with another pair (grounded) on wires.
'02 FLTRI - 103" / '84 FLH - 88"
Hinton, Alberta

Offline koko3052

  • Site Supporter
  • Full Member
  • *****
  • Posts: 4771
  • Country: ca
Re: spark then no spark
« Reply #11 on: February 12, 2018, 11:32:13 AM »
Hmm, my '05 fatboy I just run a jumper ground to clip onto my spark plug threads & everything shows sparks while the plugs are out. :baby:

Offline fbn ent

  • Site Supporter
  • Full Member
  • *****
  • Posts: 3863
  • Country: ca
Re: spark then no spark
« Reply #12 on: February 12, 2018, 11:35:57 AM »
Yeah Bill, I thought the plugs in thing was later on but  :nix:
'02 FLTRI - 103" / '84 FLH - 88"
Hinton, Alberta

Online FXDBI

  • Full Member
  • Posts: 2280
  • Country: ca
Re: spark then no spark
« Reply #13 on: February 12, 2018, 01:50:19 PM »
My 06 Dyna makes no spark with plugs out.  Bob

Offline fbn ent

  • Site Supporter
  • Full Member
  • *****
  • Posts: 3863
  • Country: ca
Re: spark then no spark
« Reply #14 on: February 12, 2018, 02:23:57 PM »
Then I'd guess it started with '06 in the Dynas and '07 in the rest....someone will clear this up soon I'm sure.... :fish:
'02 FLTRI - 103" / '84 FLH - 88"
Hinton, Alberta

Offline PIRSCH FIRE WAGON

  • Site Supporter
  • Full Member
  • *****
  • Posts: 626
  • Country: us
Re: spark then no spark
« Reply #15 on: February 12, 2018, 03:27:40 PM »
2009 TC

Only One Spark Plug is required to be installed.

I would begin with retrieving any DTC's

Crank Position Sensor. Disconnect it, connect a DVM across the Terminals (set to A/C). When Cranking Engine, a minimum of 2 VAC is required.

Tom

Offline PIRSCH FIRE WAGON

  • Site Supporter
  • Full Member
  • *****
  • Posts: 626
  • Country: us
Re: spark then no spark
« Reply #16 on: February 12, 2018, 03:42:44 PM »
1450 have a cam position sensor , the 96 have not . Instead , you need compression to make ignition .

Everyone I ever worked on with EFI has  a Crank Position Sensor. How else would the rotational value of the crank be reported to the ECM? Unless I'm missing something.
Tom

Offline Coyote

  • HTT Janitor
  • Administrator
  • Full Member
  • *****
  • Posts: 12307
  • Country: us
  • The foothills of northern CA
Re: spark then no spark
« Reply #17 on: February 12, 2018, 03:45:03 PM »
1450 have a cam position sensor , the 96 have not . Instead , you need compression to make ignition .
Unless I'm missing something.

You are, he was not referring to the crank pos sensor.  The older bikes use a CAM  pos sensor to determine the cycle. Newer bikes use the rotational speed drop due to compression.
I feel the need... for twisties with speed.

Offline PIRSCH FIRE WAGON

  • Site Supporter
  • Full Member
  • *****
  • Posts: 626
  • Country: us
Re: spark then no spark
« Reply #18 on: February 12, 2018, 03:51:54 PM »
1450 have a cam position sensor , the 96 have not . Instead , you need compression to make ignition .
Unless I'm missing something.

You are, he was not referring to the crank pos sensor.  The older bikes use a CAM  pos sensor to determine the cycle. Newer bikes use the rotational speed drop due to compression.

The CAM Position Sensors left with the Magneti-Marelli (Alpha-N Systems). My Bad!
Tom

Offline hogmandon

  • Full Member
  • Posts: 481
Re: spark then no spark
« Reply #19 on: February 18, 2018, 11:58:19 AM »
Thanks for all the replies. I have been off here for a week getting a knee replaced, should have done it yrs ago. They cut your leg in half hammer in some new parts and you are walking again in 3 hrs. It is amazing what they can do today. Might be able to ride another couple of yrs.
A friend has an 06 ultra with comp releases how does that work if you need comp to get spark

Offline Coyote

  • HTT Janitor
  • Administrator
  • Full Member
  • *****
  • Posts: 12307
  • Country: us
  • The foothills of northern CA
Re: spark then no spark
« Reply #20 on: February 18, 2018, 12:38:09 PM »
Releases only lower the cranking compression. They don't eliminate it.
I feel the need... for twisties with speed.

Offline sfmichael

  • Site Supporter
  • Full Member
  • *****
  • Posts: 5185
  • Country: us
  • Hoping to build the next mighty 'mouse'
Re: spark then no spark
« Reply #21 on: February 18, 2018, 04:58:52 PM »
Let us know what you find   :pop:

Hoping you have a speedy recovery 
Colorado Springs, CO.