180 miles fuel light flashes
50.7 miles bike not running.

Mine was doing that when I first got it. Took cat out and other mods and it went up loads.

I think the wild differences between everyones machines would seem to back up GULG's point about the fuel gauge above! I feel a poll coming on...

Btw, from the owners manual:
This is when the light comes on right?

...see here for poll:- http://www.xt660.com/showthread.php?t=18895

Might gives us a clearer overview of what's going on?

http://img.tapatalk.com/79db9e56-3956-99b2.jpg
http://img.tapatalk.com/79db9e56-3972-0068.jpg
http://img.tapatalk.com/79db9e56-3989-c3b3.jpg

Today.. Just made the pump! Felt the bike missing for juice about 500m from the pump!

Filled it to the brim.. 24.7L
Did just over 500km on this tank and just under 120km on F-trip.

my2c

Now that's an impressive amount of fuel to sqeeze into a 23L tank! :applause:I assume you've drilled an air hole in the filler neck? Either that or you have the patience of a saint dribbling that last litre and a half in there! ;)

Today I've taken a fuel bottle with a spare 0,6 liter with me to se how far it would go.

When the F first came on i was on my way home. Then i did a few small local trips and noticed that it would go away again by itself. Anyway i then did a 117km roundtrip (with fuel bottle in the luggage, and still fuel in the tank). Think I've done ~20-30km on F that was cleared agin while parked.

Today finally with the F at 121km and total of 552km it I could feel that it was starving. I still mananeged to ride ~500m to parking place and it was idling just fine. So it was'nt completely empty

In with the spare and 3km to next fuel pump where put in 24,23liter. At 20+km/l i most have used less than 0,15liter. So the fuel tank on the pony will take ~24,68liter or the same as Sysie found out :-)

I have still have't drillled the tank to get last liter in faster - but it is on my todo.

Surely you can't be THAT excited !!!!

Doesn't take much to get me excited! :yahoo: