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  #11  
Old 22 Hours Ago
Grumpy-Biker's Avatar
Grumpy-Biker Grumpy-Biker is offline
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Join Date: Dec 2006
Posts: 335
Sportster/Buell Model: Custom 883
Sportster/Buell Year: 2005
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Hi
So I Clean and reinstalled the ground wire
Battery negative to ground behind primary 0.3 ohms
Battery Negative to ground Near the oil lines 0.3 ohms

Voltage across battery 12.3 v
Voltage across battery when running 13.9 v
Seems to be charging fine never had an issue there

Cleaned all the connection at the ignition module.

So I started the bike with the DPST 1 and got the U1255
Cleared the code
change to 883 ignition Started no code
bike seems to run fine
changed back to DPST 1 bike starts fine no code

I had installed a new Crank position sensor last year.
I only ran the bike a few hunderd miles.
Crank had failed just after
I had a problem a few years back with the CKP, changed it and also bought a spare.
I will remove it and check all the connections and see if there is any damage.

Speedo has always worked fine but I

I have put a new coil 3 years ago and changed the map sensor.
when I was chassing the CKP issue.
I'll see if I can check if the plug are arcking.

thank you for all the suggestions
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  #12  
Old 20 Hours Ago
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Sportster/Buell Model: 1200S
Sportster/Buell Year: 2002
Sportster/Buell Model #2: XLH883
Sportster/Buell Year #2: 2003
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Quote:
Originally Posted by Grumpy-Biker View Post
Hi
...bike starts fine no code...
If a code returns and swapping out the DSPT 1 allows it to clear, I would be concerned about the DSPT 1. Am I missing anything?
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  #13  
Old 3 Hours Ago
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Hello.

I still have to double check if the TSM is plug correctly.

I started the bike again today.
Fine with the Stock Icm
Switched to the DSPT 1 alos started fine
No codes.

I checked the CKP
I have a two prong CKP
plug it to check the voltage
Reads 0.0 as I spin
Reads 0.01v when piston is almost at the end of compression cycle
Back to 0
Rotate some more
Read 0.01v when second piston reach top of compression stroke.
Seems normal.

When I removed the plugs after running with the DSPT1 they were black and wet
Worse than I have ever seen them.

I'll keep searching.

Thanks for all the help.
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  #14  
Old 2 Hours Ago
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CKP testing is about 1/2 down post 1 of this link:

http://xlforum.net/forums/showthread...986193&page=12

Will check Sportsterpedia as I think IXL2Relax found/developed better/more info than I had Aug 2016.

http://sportsterpedia.com/doku.php/t...k:evo:engctl03

You read 0.0 (confirm ac, not dc scale) and 0.01 as piston approached tdc.
Consolidated summary: 0.3 vac cranking and 1 vac idle from generic (not HD specific) research
Sportsterpedia: 1 vac minimum cranking, idle not listed, lead to lead resistance 600-1200 ohsm
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  #15  
Old 50 Minutes Ago
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Sportster/Buell Model: Sportster 883►1200
Sportster/Buell Year: 1994
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Quote:
Originally Posted by Grumpy-Biker View Post
I seem to be having an ignition module problem.
Currently have the DPST-1.
<SNIP>
I thinking of doing a test.
Replacing DPST-1 with the old 883 ignition i kept.
Just to see if there is an improvement.
My train of thought is if the bike runs better (just a 20 minute or so test) with 883 ignition and the sputtering does not return that would mean I need a new ignition.
Would that be a correct assumption?
So here's the XLForum threads regarding the Dynatek DSPT-1: (IT IS NOT DPST-1)
https://www.google.com/search?q=DSPT-1+site:xlforum.net

It's a programmable module - What have you done to explore to find the RIGHT MAP for this module and your particular engine???

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