Fuel meter
 

Greetings from Cairo

My fuel meter has worked relatively well so far but now, all of a sudden the bars are dropping down twice as fast compared to what it used to be. And there's nothing wrong with the fuel consumption.

Has anyone else had this problem and if so, what was the reason?

And one more thing: If I stop the bike at let it stay put for some time, the bars in the fuel meter will rise back to normal, until I start riding again and then they drop down again almost immediately.

Jami

Mine was the same, I think the only thing it's good at is telling you when it's full and when it's empty . The rest varies as the fuel moves around or seems to. Ps the flashing empty alert and reserve fuel trip always was spot on on mine though never ran dry and most I dared on the fuel trip was 30miles and in got 23litres in .

wow you must have really leathered it Mac! i usually get 50+ from reserve, and on the two occasions that i've...err, 'tested' the reserve limit (ran out) i've had approx. 75 miles from reserve and only then have i managed to get 24L in!

Jami- yes, i agree with Mac-cos about the gauge, mine too is good at showing full and empty and not much in between. I usually ignore it and use the trip meter as a better guide, or just wait for the F-trip to come on. The fuel reserve on this bike is 7L so plenty of time to find a fuel stop f you're on a normal ride. I know its annoying that the gauge isn't much good, i think its because of the shape of the tank.

pete.

Hey Jami. Could it be the heat that is causing the issue?

Mine seems to have got worse lately in exactly the same way...as you say, dropping down quickly while riding, then 'recovering' while parked up.

Even does it overnight, so it's not due to the fuel expanding when hot. Quite the opposite it seems.

I'd trust Osama Bin Laden before I trust my fuel gauge....

I can't agree with the others though, the only time it's right is when the bike is full!

I too have managed 70 miles on the F-Trip, but I use the trip like everyone else. I also fill her up at 150miles, normally get around �15 in the bike, depending on my riding, price of fuel and temp (always get more mpg in the cold).

With a quiet frugel ride (is that how you spell frugle/frugel/fruggle/slow!) I have managed 300 on a full tank, with some fumes to spare, moreover though around 250 is about right.

It's not just the Tenere, my XJR has a crap gauge too.......

Sometimes erratic fuel gauges can be due to a different petrols (particularly with low quality stuff) which doesn't have, or has less anti-frothing agents in it. What happens is the fuel froths up in the tank when you ride causing the float in the tank sender to send false readings to the gauge, when you stop the frothing subsides and everything goes back to normal. Tends to happen in the developing world more than in the west (but it still happens) as our stuff has more additives to stop this kind of thing.

Hey this could be it. I noticed this thing in Jordan. Before that my fuel meter has always worked pretty well on these past two years. It can't be the heat because we had similar temperatures last summer in Finland and no problems with the meter then.

So I guess there's nothing I can do about it then. Better start getting used to resetting the trip meter after fill ups.

Jami

I ignore the gauge completely and use the trip meter to know when to fill up..

I suspect the fuel guage is on the left hand side of the tank so when the bike is resting the fuel level seems higher on the meter. When you turn it on again afterwards the level seems to have 'recovered' until the meter realises the level is lower when the bike is upright.

Also noticed my level drops from full quicker than it used to, but as other say full and f-trip are still correct and that's all I ever used it for anyway (and I always reset the trip each fillup anyway)