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  #21  
Old 04-26-2017, 07:16 PM
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Originally Posted by 98hotrodfatboy
Sorry missed the wires change....

Have you checked the ignition rotor on the cam to see if maybe it loosened up a little.

What about the cam sensor, any goo leaking out?
Those are the first thing I checked. I basically ripped out a perfectly good ignition and coils.
 
  #22  
Old 04-26-2017, 07:19 PM
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What the heck makes the rear cyl exhaust go fluff, fluff, fluff, fluff after reving the engine, but does not do it cold.???????
 
  #23  
Old 04-26-2017, 07:22 PM
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Is it starving at idle or a carb problem? wouldn't think so if only one cylinder fluffs.
 
  #24  
Old 04-26-2017, 07:29 PM
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Originally Posted by aces&8s
Is it starving at idle or a carb problem? wouldn't think so if only one cylinder fluffs.


It's hard to say. I have a CV instead of a S&S, but mine idles lower until warmed up. Once warmed up the idle smooths out and increases.
 
  #25  
Old 04-26-2017, 07:35 PM
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Did you try backing the idle mixture screw out a little, like 1/8th to 1/4 turn? Any change?
 
  #26  
Old 04-26-2017, 09:11 PM
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Originally Posted by Dr.Hess
Did you try backing the idle mixture screw out a little, like 1/8th to 1/4 turn? Any change?
Yes I tinkered with the carb adjustments and went back to the original
42 main jet today. Bike runs like a rocket over 2k rpm.
Carb problems would not make only 1 cyl miss.?
 
  #27  
Old 04-26-2017, 09:23 PM
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Is it only missing at idle? Maybe posting a video would help out.
 
  #28  
Old 04-26-2017, 09:34 PM
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Originally Posted by kp877
Is it only missing at idle? Maybe posting a video would help out.
Making a video & posting it on youtube is a pain.
Yep misses at idle and smoothes out about 1500 or so.
 
  #29  
Old 04-26-2017, 09:49 PM
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Just cranked it up cold and ran great even without choke. after it warmed up ideled like crap again??????????? WTH
 

Last edited by aces&8s; 04-26-2017 at 09:52 PM.
  #30  
Old 04-26-2017, 11:51 PM
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Does the exhaust pop on decel? Does the carb spit or backfire? Just making sure you eliminated an exhaust leak.

I know you checked for an intake leak with carb cleaner, but what you describe sounds like an intake manifold leak. I would check, or maybe just replace gaskets, and check condition of manifold. Good luck.
 


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