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Old Oct 25, 2016 | 03:53 PM
  #21  
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Stop parking next to that meth house with the garden hose out front.
 
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Old Oct 25, 2016 | 04:00 PM
  #22  
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The loaner bike I have now is a complete turd. I've checked the mpg by hand and it gets 22mpg. It's a turd,runs hot,no power whatsoever. I could tell this before I even checked the mpg,you should be able to ride your bike and tell if it's no quite right.
 
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Old Oct 25, 2016 | 04:29 PM
  #23  
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First to help you answer your Question--... is your bike stock,, or what mods have been done to it... IE-- pipes, A/C, Cams, and most important -- what tuner and how was/is it tuned.....??

I've read in here many times that people who have the older Fuel Pac installed lose MPG and end up getting in the 20 something mileage....


Or maybe your neighborhood Kid is getting his gas from your bike to support his mowing business.....
 
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Old Oct 25, 2016 | 04:54 PM
  #24  
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Originally Posted by awlsnsr
WOW I didn't realize how sensitive we are.
I was getting 30 mpg per gallon! Now I'm getting 20 - 21 mpg. I check my tire pressure several times per week and I've changed the spark plugs. I use the same premium gas as before. Do you all haae any suggestion?
Could you be running it harder, higher RPM? Mine has up to 10 MPG difference between just cruising to and from work, and wanting to go on a high speed run. Did you change gas stations? Maybe their octane isn't equal.

Just some thoughts. Good luck in your search.
 
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Old Oct 25, 2016 | 08:01 PM
  #25  
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Wow, that's even worse than my 08 Fatboy which averages around 30 mpg...
 
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Old Oct 25, 2016 | 08:18 PM
  #26  
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Are the newer plugs black and sooty? If so you are really rich.
 
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Old Oct 25, 2016 | 08:30 PM
  #27  
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Originally Posted by awlsnsr
I'm getting about 100 Miles Per Tank on my 04 fatboy. I've changed the spark plugs and check my Tires almost daily. What could the problem be?
First question is do you have a carb or EFI?

Do you smell gas as you are riding down the road?

Did you do anything to the bike before the mileage went down?
 
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Old Oct 25, 2016 | 08:49 PM
  #28  
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I'll check the plugsIt's an EFI
Sometimes I smell gas while riding
I didn't do anything to it before the problem started
Sometimes I ride it hard but not consistently enough to cause this problem
 
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Old Oct 26, 2016 | 06:48 AM
  #29  
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Originally Posted by awlsnsr
I'll check the plugsIt's an EFI
Sometimes I smell gas while riding
I didn't do anything to it before the problem started
Sometimes I ride it hard but not consistently enough to cause this problem
With an EFI system you shouldn't be smelling gas.
My guess is that you have a small leak somewhere.
 
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Old Oct 26, 2016 | 12:38 PM
  #30  
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I just read a similar thread like this and the cause of the low mpg was the seal on the gas cap being old. A new gasket for $1.99 fixed the issue.
 
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