RACE MODE

"Race Mode"
Another part of the mystique of this motorcycle is the hidden "race mode" inside the fuel computer. The bikes were factory restricted by means of an over boost cutout which operated at above 12 psi of turbo pressure. The computer can be switched back into "race mode" by a simple rearrangement of wiring to the fuel computer plug and this removes the 12 psi boost limit and allows a coarse adjustment of fuelling to suit higher flowing exhausts. This is borne up in some official Kawasaki documents reprinted at 750turbo.com detailing the fitment of an intake scoop and free flow exhaust along with the modification for racing use.
All 750 Turbo fuel computers support race mode, although its existence in US model computers has been denied (primarily it is alleged to avoid falling foul of EPA legislation), and it can be identified by the code "33" emitted from the computer diagnostic led on the front of the unit under the seat hump which is the only code that does not also light the DFI warning on the tank display.