Just bought a 2000 Kawasaki 900 stx, wasn't running at the time because of spark. We were able to get spark back but now it seems to have a fuel delivery issue. Can someone explain how the fuel delivery works in these? At one point there was fuel in the filter, but it appeared to be golden.. does oil direct inject? It appears to have a mechanical pump, the lines may have gotten crossed and i cannot find a diagram to correctly reconnect.