At what point does the fuel warning light come on on the XT125r?

[LMRacing69]

i have a feeling mine is when i have 5 litres left but never too sure this has became a problem as im trying to find out how many mpg i have done.... and I'm rather confused now as if i go on my theory that its at 5 litres left i have managed to do over 120mpg which i find hard to belive really :S

[Cynic]

i have a feeling mine is when i have 5 litres left but never too sure this has became a problem as im trying to find out how many mpg i have done.... and I'm rather confused now as if i go on my theory that its at 5 litres left i have managed to do over 120mpg which i find hard to belive really :S

You dont have to run the tank out to work out the mpg, just fill up to some visual reference in the tank. There may be a crease in the metal, a rust spot or the base of the filler neck. Just as long as its something you can repeat. Then go do X number of miles then re fill at the same pump to the same point.

Its what i did with my 250 and got 46mpg from steady mixed riding, pushing it took it down into the low 30's without effort. I recon a trackday would put it well into the 20's, and this is a stock bike. The problem with the reserve light is that no 2 will ever read the same, more to the point a hot bike will read different as fuel is a spirit and will expand readily with temp (which affects its density) so fill on a hot day then refill on a cold and your figures could be all wrong.

[Vez]

Easy enough to find out when the light comes on.

Drain the tank with the ignition on, until the light comes on, then drain the rest into a separate container and measure.

Vez

[Gas up - Let's Go!]

I wouldn't take any notice of when the light comes on, if it's anything like my Yams it just does as it pleases!