An update on my fuel issue:
2012 GSA. My fuel gauge is fairly accurate. The bike would conk out, as if it had run out of fuel, whilst still showing 45 miles range remaining.
The bike would then take only 28 litres (ish) of fuel to brim it. It became apparent that there was about 5 litres of fuel remaining in the right hand side of the tank: the sucker jet pump was not moving fuel from the right, to the left, as it should.
On inspection, the fuel pump was only making 2 bar of pressure. It should make well over 4 bar. It needs to make this pressure in order to operate the sucker jet pump.
Had the pump replaced last week, then repeated the "run dry" test. All was well: it went down to "zero miles range" then continued to cover another 26 miles before abruptly running out.
It then took 34 (and a bit) litres to fill it.
Happy now I'm no longer lugging over a gallon of fuel around that I can't use!
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