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Discussion Starter #1
So I've been watching my mpg and fuel.. On average I get 130 to a tank I even ran it completely out to where I had the reserve kicked on to go get gas. Problem here is that when I got gas it only took 2.7 gallons and it should if taken 4 gallons. I've done this a couple if time but don't understand where my gallon and a half is.


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It's hard to know how Yamaha rates their tanks, but it is fairly usual for about 10% to 15% of the tank volume to be "unfillable." That's the reason the neck extends down into the tank a ways. The unfillable volume gives room for the gas to expand a bit in hot weather, or when the bike sits in the sun.
 

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I've been watching mine closely, and where I should be able to go 150mi between fill-ups, I usually fill up somewhere between 90 and 110mi because "hoofing it" is something I would much rather have in the recesses of the memories of my teen years.

BTW, I am averaging 46MPG over the last four fill-ups. Is this what you guys are seeing?
 

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Try to return the bike. it's definitely a defective tank and nothing else.
 
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