I have been working on my JD LX255 (Kohler CV15S) for about three days. It has been starting okay after "resting" overnight, but if I shut it off after running, it won't even kick. Today, I started it up and actually mowed for maybe 10 minutes at full throttle and it died and won't start again. When it died, it didn't sputter or run rough at all... just stopped dead. It turns over but no sign of life. The only obvious thing I notice is that the new fuel filter (which I believe to be the right one), never seems to fill up with gas... maybe a third full. Is this normal? Other than that, I am stumped (I have done most everything I know how to do, but I thought I would put this issue out there one more time. Thanks.