my low fuel light comes on at about half a tank...anyone else having this happen to them? anyone inquired to harley about this? just want to know if this is a common problem, seeing as how this is my first bike.thanx in advance.

 

Lucky you. I want a Nightster so bad. Still saving up the cash though. I don't want to finance. Anyways, I've been cruising the boards and this is what I've found. The light will come on after 80 or 90 miles. Second thing I've heard is to make sure the bike is upright when you start it after refueling. Range on a single tank is around 130 plus or minus miles. On my sport bike I go by the odometer. I use the light as a reminder to check my current mileage.

 

Mine is a little erratice, comes on between 80 & 100 miles usually. All the models are different and there is a table in your manual.

 

between 80 & 90 miles

 

92 miles light comes on, 125 miles bike sputters on levelroad, 132.5 bike dies completely empty. Use odometer.

 

Wait, why does the bike die at 132.5 miles? Isn't the tank 4.5 gallons for '07 Sportsters or does the Nightster have a different tank size? Thats well over 200 miles before fill up? But I have a 2007 1200C and my light comes on after 1 mile. They say I need to get on the second tank, I just bought it and this is still my first tank, and see if that fixes the problem.

 

Yes the Nightster has a smaller tank at only 3.3 gallons. The first time my light came on was at 47 miles but I think it was due to getting the hang of the bike and warm up times sitting in traffic and what not but then it didnt come back on until about 115. Every time I've filled up basically as soon as its come on just too see how much is left and its been on average about 2.3 gallons that needs to be put in. Side note.....anybody think that the nightster could use a bigger tank? not only in capacity but a bit fatter. I think a fatter more laid back tank would absolutely set this bike off!! what you do think?

 

Try this...

If you want your low fuel light to more accurately reflect a low fuel situation, don't turn the ignition on until you've got the bike off the side stand and standing straight up. Once you've got the engine running, you can put it back on the side stand until you're ready to ride off.

 

Here we go again. When you fill up. Put your bike in the upright position before you turn on and start her up. It will be more accurate. It shout burn through 2.5 gallons before the idiot light comes on.


Same^^^^

 

Mine seems to like to come on at 85 miles regardless of actual fuel level ... I give up. My guess is the sensor only needs to lose fuel contact once and then it is programmed to stay on. So if you lean on a turn and fuel moves away from the sensor it will trigger on and stay on even if the fuel level comes back up.
The Nightsters could use about a 4 gal tank, that would make me happy. I have to fill up about every 2 1/2 days of commuting. I get great gas milage (45 mpg) but still it seems like I am always at thegas station.