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TOPIC: Re:fuel milage revisited
#57555
cartersta (User)
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fuel milage revisited 1 Year ago  
Since it has gotten cooler, my gas milage has gotten worse , in july we we on a long ride and i averaged around 44 - 48, now it getting 33 -39, even changed plugs, switched form ngk to autolite, does the cold have any effect? could the carb setting have changed? any ideas on the matter?
 
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#57568
DocShadow (Admin)
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Re:fuel milage revisited 1 Year ago  
Winter blend fuel has a lower BTU rating due to the additives. This will result in lower gas mileage.

Cold air is also denser that warm air but I doubt is would have that much of an effect for a bike vs car.

Doc
 
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#57571
Cougar (User)
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Re:fuel milage revisited 1 Year ago  
What did the plugs you took out look like ....Coug
 
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#57581
Musky (Moderator)
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Re:fuel milage revisited 1 Year ago  
They didn't sneak more corn in your gas did they?
 
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#57639
cartersta (User)
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Re:fuel milage revisited 1 Year ago  
plug looked real good, the napa shop owner is a bike rider and drags, he said they looked like the mixture was good,but i did a nascar shutoff when i shut it down, wot then cut off & coasted to stop.
 
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#57725
Big Bear (Moderator)
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Re:fuel milage revisited 1 Year ago  
I seem to loose a few MPG in the winter as well, I tend to think it's the fuel as mentioned. BB
 
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#57801
Curt (User)
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Re:fuel milage revisited 1 Year ago  
It's all a PLOT sneak more corn in milage goes down charge more for gas.
 
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#57867
Flashback (Moderator)
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Re:fuel milage revisited 1 Year ago  
Big Bear wrote:
I seem to loose a few MPG in the winter as well, I tend to think it's the fuel as mentioned. BB Yep, that, and the cooler air,,I notice more backfireing on decel when it's cooler out..20 degrees makes a big difference...
 
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#57871
Musky (Moderator)
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Re:fuel milage revisited 1 Year ago  
flashback wrote:
Yep, that, and the cooler air,,I notice more backfireing on decel when it's cooler out..20 degrees makes a big difference...

That's cuz cold air is more dense so your getting more air than usual and your running leaner. Turn your PMS out an 1/8 to a 1/4 turn in colder weather.
 
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