slowest busa in the world

[revhead]

ok i moved dj,s wiring fuel tank switch blocks onto my 99 ,and everything plugged into the 99 motor,used the 01 ecu and reg reck ,ignition every thing ,as his bike was running ,ok i hit the start button ,,motor turns over ,has fuel has spark ,but refuses to fire ,only blowing the odd flame out of the muffler ,now and then ,but while cranking it will not fire, any ideas,