last fall my 2000 fi was fouling rear plugs, ended up at dealer. 700 bucks and 3 weeks later I get bike back. road it home in rain/snow. managed a few short rides when I could. spring arrives and rain, long story short. not much riding. now runs good when cold, after its warm it starts misfire/stumble. acts like its dropping cylinder, at least its not dumping fuel out of exhaust. put kick stand down and lean it over and it cleans out and runs good. stand it up and sorta bobbles, lean to right and runs so bad, almost stalls. dealer said they replaced both injectors and pressure regulator. took it back to them twice, they say its fine. any ideas ?