you don't need to ask anyone on this list to reply, simply ask any car mechanic. fuel pumps in the gas tank are meant to be "underwater" to be kept lubricated. i've not looked at the yamaha manual to see if the the fjr has an in-tank fuel pump, but per the amount of replies, apparently it does. and if it's like car fuel pumps, you don't want to make a habit of running your tank near dry. it will bugger your fuel pump.
but that's just my opinion, and maybe even click and clack, that tappet brothers.
dean
cincinnati
but that's just my opinion, and maybe even click and clack, that tappet brothers.
dean
cincinnati
Somebody reply who has had to have their fuel pump replaced.Think of the pump as being immersed in a cooling bath of fuel. Remove the bath, it gets hot. Running it right to the end of the fuel capacity means the pump is running in air more than in heat-absorbing fuel. It's an electric motor, after all, and it generates heat, just by having electrons shoved through it.I've seen this come up a few times. Sounds like non sence to me. If the the engine is out of gas, it's not running. If it's not running, the fuel pump is not running. If it's not running, it's not over heating. No gas No heat.Actually the fuel cools the fuel pump. THat is the main reason why you don't want to repeatedly run on empty. It will overheat the pump!
Don't lock this thread down to the pointless neverending land.
I don't know if I buy into that myself, but that's what they're sayin'.
Also, in a low-fuel condition there will be moments of sucking air, which unloads the motor, running it up in speed. Kind of like a boat motor when the prop comes out of the water in a good chop. Maybe there's some trouble from that, too.