954 3k stutter - Honda Motorcycles - FireBlades.org
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post #1 of 8 Old 06-01-2011, 3:48 PM Thread Starter
 
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954 3k stutter

Hey all,

Ive just fitted a full micron system to my 954 and although I couldn't feel it much on the road, the dyno guy said it was running rough at low revs and had eratic fuel demands in that area. I think the same problem existed in standard trim as another dyno guy complained about the same thing when he mapped the standard bike.

I did a track day

I gave it back and he played with the throttle position centre, then had the injectors cleaned(which changed the fuel demands requiring mapping again) The problem still persists, but less so. @3k with 40% throttle it's ok, but 60% or more and the engine stutters.

The exhaust valve is obviously gone and so too is the flap in the airbox. The rest of the bike is standard and showing no faults.

Has anyone else had similar?
shittyarsedmonk is offline  
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post #2 of 8 Old 06-07-2011, 1:35 AM
 
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Re: 954 3k stutter

well i had problems with the servo , so i removed the servo, the airbox flap , and the htev , i get the stutter but from 5.3k to almost 7k , i just hope someone could have a solution.
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post #3 of 8 Old 06-07-2011, 10:57 AM
 
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Re: 954 3k stutter

Not sure if it applies in this situation, but have you checked the FPR?
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post #4 of 8 Old 06-07-2011, 2:01 PM Thread Starter
 
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Re: 954 3k stutter

Quote:
Originally Posted by txrider View Post
Not sure if it applies in this situation, but have you checked the FPR?
What's an FPR?
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post #5 of 8 Old 06-07-2011, 2:04 PM Thread Starter
 
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Re: 954 3k stutter

Quote:
Originally Posted by mariog70 View Post
well i had problems with the servo , so i removed the servo, the airbox flap , and the htev , i get the stutter but from 5.3k to almost 7k , i just hope someone could have a solution.
How did you remove the HTEV? Did you use a straight through pipe?
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post #6 of 8 Old 06-07-2011, 2:25 PM Thread Starter
 
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Re: 954 3k stutter

I now realise what an FPR is, soz, never seen the acronym. Just checked it, it's not dripping petrol from the vacuum conection anyway. Maybe it's still faulty. When I saw the thread I was immediately convinced that was the problem, it fits the symptoms.
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post #7 of 8 Old 06-07-2011, 2:57 PM
 
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Re: 954 3k stutter

Bummer! I was hoping that the FPR issue solved your problem.
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post #8 of 8 Old 06-07-2011, 3:56 PM
 
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Re: 954 3k stutter

Quote:
Originally Posted by shittyarsedmonk View Post
How did you remove the HTEV? Did you use a straight through pipe?

sorry i said i removed it , its there but its just wide open it doesn't have any other parts
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