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FPR Questions

  #1  
Old 09-11-2009, 10:55 PM
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I recently change my FPR about a month ago. I suddenly notice the difference in the way the bike ran. Real smooth throughout the RPM powerband and 150+ miles per fill up. Then just recently the bike started to feel just like it did before I changed th FPR. Rough(vibrates a bit) throughout the RPM's and 120-130 miles per fill up. I also cleaned out the K&N as well. The only thing I have yet to do is spark plugs. My questions are:

Does this sound like a symptom of a defective FPR?

Has anyone had their FPR prematurely fail??

Is there something else I am not looking at??
 
  #2  
Old 09-14-2009, 12:40 PM
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FPR's are such a common problem I would say most are premature failures. However lots of things can cause said problem. I would replace the plugs first. While your doing that, go ahead and pull the vac line from the fpr and see if its leaking.
 
  #3  
Old 09-14-2009, 08:45 PM
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Originally Posted by grumps91gt View Post
I recently change my FPR about a month ago. I suddenly notice the difference in the way the bike ran. Real smooth throughout the RPM powerband and 150+ miles per fill up. Then just recently the bike started to feel just like it did before I changed th FPR. Rough(vibrates a bit) throughout the RPM's and 120-130 miles per fill up. I also cleaned out the K&N as well. The only thing I have yet to do is spark plugs. My questions are:

Does this sound like a symptom of a defective FPR?

Has anyone had their FPR prematurely fail??

Is there something else I am not looking at??
Adjust the throttle bodies, too. They could be way out of sync.
 
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