im not 100% sure on teh best way to do it but probably what i would do is get your hands on the factory engine wiring harness and use a aftermarket computer, with a older style auto, or manual so the computer doesnt need to look after it. It may be possible to use a ea or eb non smarlock computer but im not sure on how to go about it.
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Rides:
-Ba xr6t, wog cooler, K&N pod on custom intake, battery moved to other side, flash, custom cooler piping, presons auto, car pc, 19" lenso speed 6, going for 300rwkw
-FZR 250- run around bike