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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through September 09, 2012 » Low fuel light doesn't work. « Previous Next »

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Discochris
Posted on Saturday, August 18, 2012 - 11:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I did a search but didn't see anything. I noticed this weekend that my low fuel light/countdown isn't working. I ran through two tanks without it coming on.

I thought I might just be getting excellent gas mileage, but when I stopped to fill up, it took 3.42 gallons! Lucky me that I didn't keep going.

Is there a float in the tank that triggers this?
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Pontlee77
Posted on Saturday, August 18, 2012 - 11:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Not actually a float is a sensor that when it's wet it keeps cool when is not wet it heats up and turns the low gas light on, it's on the fuel pump.

I'm sure some one knows better than me the answer to the problem.
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Arry
Posted on Sunday, August 19, 2012 - 01:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think Ulys have a 4.4gal capacity, and I believe the low fuel light comes on when you're down to 0.4gal. If this is the case you weren't low enough for the light to come on - you still had 1gal.
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Kag
Posted on Sunday, August 19, 2012 - 02:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine comes on when I hit 3.8 or so
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Hughlysses
Posted on Sunday, August 19, 2012 - 07:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine comes on at close to 3.5 gallons. If want to test the light but you're worried about running out of fuel, strap a 1 gallon container on the bike and ride until either the light comes on or you actually run out of fuel, then refill.

If it's actually not working, it could be something as simple as the bulb is burned out.
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Froggy
Posted on Sunday, August 19, 2012 - 09:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There is no bulb.
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Ratbuell
Posted on Sunday, August 19, 2012 - 09:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Statements above are correct - the 'long' XB frame, like the Uly, holds 4.4 gal. Mine routinely takes 3.6-3.8 when I fill up, usually less than 5 miles after the light comes on.

The LFL is an LED, not a bulb. They kinda did that so it would never burn out...

I carry a spare 30oz of fuel at all times, in an MSR fuel bottle that I keep in an operators tube. I have one mounted to the Uly, and also to my S2. 30oz doesn't sound like much...but it's about 15 miles that I don't have to push. Carry a small amount of spare fuel with you, and like noted above - run it dry, and see what happens. If nothing else, you'll know what your ultimate trip odometer range is - always good to know anyway!
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Mark_weiss
Posted on Sunday, August 19, 2012 - 10:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My light is reliable at 3.6 gallons. That leaves 0.8 in reserve.
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Discochris
Posted on Sunday, August 19, 2012 - 12:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok, my mistake. I thought the tank held 3.6 gallons or so, based on what I put in when the light usually comes on. I was getting really good mileage though - around 44 mpg.
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Pookawa
Posted on Sunday, August 19, 2012 - 12:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

mine doesn't either. Only ran it empty once, and use Odo more conservatively now.
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Tootal
Posted on Sunday, August 19, 2012 - 01:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

44 would be about average for the different years and every other variable there is. I just did 2800 miles and I got anywhere from 38, (80 mph and a head wind in Nebraska), to 63.4. (Leaving Silverthorne east to Limon Colorado) I couldn't believe I rode that distance and only put 1.9 gallons in!

My light comes on at around 3.5 gallons and I've run out at 36 miles on the countdown mileage.
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