Hello, I would some help on my 2001 WR400. (Netherlands import) The bike needs 4 twists of the accelerator, full choke and a good kick and it starts every time. When the engine is hot it starts first kick with the hot start knob. I have notice that the exhaust pipe coming out of the engine turns red/orange (HOT) after 2 minutes fast tick over. The bike seems to perform well but on one occasion lost some hot water/steam though the expansion tank. This as made me wonder if it is running weak. I am thinking of changing the jets and also making additional mods to give more power. I have read articles about throttle stop, grey wire and de-octopussed could someone please help.