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post #1 of 11 (permalink) Old 08-17-2014, 02:29 PM Thread Starter
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Fuel mileage drop

So over the past year my fuel mileage has decreased 10%; from an average of 43 MPG down to 37 MPG. Anything I should look at as an impending failure?

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post #2 of 11 (permalink) Old 08-17-2014, 03:17 PM
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So over the past year my fuel mileage has decreased 10%; from an average of 43 MPG down to 37 MPG. Anything I should look at as an impending failure?
Wrist movement .

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post #3 of 11 (permalink) Old 08-17-2014, 04:47 PM
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Wrist movement .
+1

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post #4 of 11 (permalink) Old 08-17-2014, 05:14 PM
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How many miles? First thought would be plugs and fuel filter, but could be result of a quick snappy wrist.


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post #5 of 11 (permalink) Old 08-17-2014, 06:27 PM
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Running to higher RPM between gear changes? Lots of revs up? More items on bags weight increase?
Assuming everything else is normal.


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post #6 of 11 (permalink) Old 08-17-2014, 09:34 PM
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Question Fuel?

Has your fueling location changed?

Has your fuel gone from no ethanol to 5% to 10% to 15% ethanol?

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post #7 of 11 (permalink) Old 08-17-2014, 10:11 PM
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^+++ all of the above. Sounds like you are experiencing happy riding and potentially crappy (seasonal) fuel. Might want to check your air filter too along with tire pressure.

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post #8 of 11 (permalink) Old 08-18-2014, 11:47 AM
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You're not coasting down those long Arizona downhill grades anymore. You need more throttle to cruise on the flatland.


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post #9 of 11 (permalink) Old 08-18-2014, 02:21 PM
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10-15% ethanol will do exactly what you are describing, I saw it several times on the way to SWIV as I went state to state and used fuel with and without ethanol. MPGs ranged from 36-43.

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post #10 of 11 (permalink) Old 08-18-2014, 02:45 PM
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Welcome to the wonderful world of Ethanol.

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Oh and its black because blacks faster.
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