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Need some diagnostic help.....

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Old Feb 10, 2010 | 03:26 PM
  #11  
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If one of the switches / circuits is shorted out you may have been draining the battery since you got home. Generally speaking when you turn off the ignition and the run switch the battery is (should be) isolated. However, with water in the fuze box or switch housings, wherever, there could be current flowing through the water. That will drain the battery. I didn't get from your initial post that the bike definitely didn't get wet, sorry if I missed. However, with respect to only when stopping, hey, water has weight, it could be sloshing around inside of something ... even if it's a tiny little bit of water.

Just suggesting that you make sure the battery is charged up, maybe take it out and down to the dealer. Mine would charge and test it for free. And then before putting it back in go over every thing that could have picked up any moisture, even off the road and make sure it's all dried out. I think one of the guys mentioned PC (electronic ignition) would make the bike pop if it got wet, ... anything with water and electrics = NFG.

t
 

Last edited by Robottom; Feb 10, 2010 at 03:39 PM.
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Old Feb 10, 2010 | 03:38 PM
  #12  
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Just to clarify.

Testing things for water, if you have an air compressor try blowing some air into the switch housings, connectors, back side of the electrical caddy, etc. If you don't have a ready source of dry air, try buying one of those compressed air cans from FRYs or some computer sales place. Some connectors are easily unplugged and shaken, don't need air.

If you see any water, suspect the crap out of it and find a way to dry it out, careful with a hairdryer ... no flames OK. Also, you may not have gotten directly into the wet, but moisture builds up and cold causes condensation ... IF you find water, once you're sure it's dried out, start asking questions about re-sealing whatever it is so you don't have to go through this again.

OH, yeah, dry isn't going to start the bike, still need a good batery for that.

t
 

Last edited by Robottom; Feb 10, 2010 at 03:40 PM.
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Old Feb 10, 2010 | 09:26 PM
  #13  
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Update: After taking the battery to a local shop and attempting to dry all connectors I proceeded to connect battery and start bike. The bike started up instantly.......only the bike is Roaring significantly louder than it was previously. Ordinarily I might b jazzed by the newfound growl.....but think the PCV is probably shot. Attempted to ride it around the block....but even I was troubled by how loud it was and when i was downshifting from 3rd to 2nd at one point the bike seemed about ready to stall. Tried air compressing the PCv out in case any water got in there but no luck. Tomorrow i'll unplug the PCV and see if that solves the problem. I've lost the PCV instructions...will I just need to unplug the PCV and plug the stock connector back in AND disconnect the O2 sensor eliminator and plug back in to the stock harness to test this theory?
I'm going to hate having to scrap the PCV....i've loved how the bikes run with it versus stock.
 
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Old Feb 10, 2010 | 10:18 PM
  #14  
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Find someone who knows the PCV. It is robably not shot but needs to be reinstalled or re-mapped.
 
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Old Feb 11, 2010 | 09:37 AM
  #15  
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Are you sure you didn't blow out a baffle or something, maybe exhaust gasket leaking at the head? There's not a lot of things you can do to an electrical system to make the bike louder. Even if the PCV is bad, can't imagine how that would make a significant difference in sound without other tell-tail symptoms. Ex: It could be pouring gas into the cylinders due to something funky with the ECM, but you'd likely notice some other things too, like back firing, flames coming out of the exhaust....

It's possible that a sudden opening in exhaust would change (lean out) the AFR composition possibly leading to stalling, but that doesn't explain the screeching that you heard when stopping, hmm ... scratching the ole noggin.
 
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Old Feb 11, 2010 | 02:37 PM
  #16  
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New update: Well, was hoping a nights rest might calm the bike down...but this morning it was still roaring. Do some forum surfing and find the following 2 threads

http://www.*****************/forums/tw...e-problem.html
https://www.hdforums.com/forum/dyna-...then-dies.html

Sorry, dont know how to make the link. So anyway, I figure what the heck and pull of the air cleaner and spray throttle body with throttle body cleaner. Start the bike up and the bike sounds normal. Take her for a lil ride. For the first few miles all seemed well, but the longer I rode....started popping on decel again and not idling properly even stalling at one stop sign. Get back home and think maybe it needs another spray with throttle body cleaner. So I remove air filter and repeat process. Take her for a spin and same scenario.....ok for first few miles and then the popping and the rough idle return. This time I even hear the screeching noise that started my dilema but I cant identify where its coming from.

So now I'm scratching my head. It could be a bad IAC....but i'm not sure if that would have caused the battery dying. Which leads me to believe the PCV might be the culprit. Guess the next test will be to remove PCV to see how it runs stock. I asked yesterday but i'll ask again....will I just need to unplug the PCV and plug the stock connector back in to the ECM AND disconnect the O2 sensor eliminator and plug back in to the stock harness to test this theory?
 
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Old Feb 11, 2010 | 06:47 PM
  #17  
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Sorry no idea with the PCV, just bumping your thread back to the top.

Last thoughts from me ... before pulling the PCV, try using the little red tube that comes with the carb cleaner and spray directly into the IAC port if you haven't done that already and make sure your air cleaner is actually clean. If the air cleaner is dirty could cause really mess with your AFR.

Loud pipes and screeching, the only solution for that is divorce... lol, just messin wit ya. GOOD LUCK.

t
 
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Old Feb 11, 2010 | 08:21 PM
  #18  
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Originally Posted by Robottom
Sorry no idea with the PCV, just bumping your thread back to the top.

Last thoughts from me ... before pulling the PCV, try using the little red tube that comes with the carb cleaner and spray directly into the IAC port if you haven't done that already and make sure your air cleaner is actually clean. If the air cleaner is dirty could cause really mess with your AFR.

Loud pipes and screeching, the only solution for that is divorce... lol, just messin wit ya. GOOD LUCK.

t
Now that you mention it....my filter is clean....too clean! I changed the filter about a month ago and it still has that pinkish filter oil tint. I'll have to check out the ports tomorrow morning to see if air is even flowing through them.
 
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Old Feb 12, 2010 | 05:23 AM
  #19  
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If you can afford it, it may be time to take it to a good indy shop & let them figure it out. Hopefully it's something fairly simple & inexpensive to fix.

Good luck,

John
 
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Old Feb 12, 2010 | 09:41 AM
  #20  
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I think it is unlikely your PC-V is causing this issue ....

To test your theory, however, you should be correct about just unplugging from the injectors and O2 sensors and plugging the OEM cables back in ....

May or may not be water in your electrical system ... I guess you would know whether that is plausible ...

If it is electrical/electronic, it seems to me it is as likely as not your ECM ... got a gremlin in it ... I suppose its possible ....

Popping on decel is a typical lean indicator, but there could be other causes ... and, with the screeching, it may be coincidental ....

Be sure to post what you discover ... would be interested in hearing what caused your problem ....

R/
'Chop
 
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