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Old Oct 24, 2007 | 01:41 PM
  #1  
bcraze's Avatar
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Default running rough

i have a1995 900rr its running real rough. i noticed on of the carbs had some fuel on it but it was just the one. if any one has a idea can you please get back to me.
 
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Old Oct 24, 2007 | 04:48 PM
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Default RE: running rough

Sounds like it is time to remove and clean the carbs. Possibly one of the floats is stuck up and the one carb is over filling. You may need to rebuild the carbs and replace the gaskets. Also double check thatyour fuel petcock isn't leaking. If the carb is leaking and the fuel also hydrolock is a possibility.
If it is a vacumn one it should only let fuel through when on prime (Should have main, reserve, and prime). Or it has on, reserve, and off which means it is not a vacumn type. Just make sure it is not leaking when its not supposed to.
You can try a can of SeaFoam first to see if that helps. Or other carb cleaner.
 
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Old Oct 24, 2007 | 06:02 PM
  #3  
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Default RE: running rough


ORIGINAL: tomc1965

Or it has on, reserve, and off which means it is not a vacumn type.
If you mean a vacuum actuated petcock, this statement is incorrect.

i agree though that it sounds like a float valve is clogged up, or your float level is out of calibration.
 
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Old Oct 24, 2007 | 06:21 PM
  #4  
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Default RE: running rough

hey thanks for the advice. not really to sure how to diagnose that kind of stuff yet. but with help from people like you it will soon be a breeze. thanks again, is it hard to do
 
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Old Oct 24, 2007 | 06:26 PM
  #5  
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well it can be. since there's four of them, you'll need to remove each one, clean, inspect, calibrate, and reinstall each one. who knows, you might even need to rebalance them... but you should make sure that both the main jet and the pilot jet are clean. I mean super clean. you have to see light unobstructed though each one.

it wouldn't hurt to back flush the line either to make sure debris isn't in there. maybe check you fuel filter (if there is one) or replace it too.
 
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