Kawasaki FD791D Issues .

Okay what you got is the DFI system and instead of crank position sensor it is using a speed sensory system. IF the Op would like a copy of the SM I send a link via PM to the one that I can temporary upload to my Google drive.

You will a fuel pressure of 25.6 ± 0.7 psi. Also speed sensor may not sending the signal to ECU. Hint the speed sensor is part of ignition coil kill circuit.
 
Both as they are tied together.
FD791D DFI Wiring.JPG
MLG (MIG) pin of ECU

ECU PIN OUT
ECU PIN OUT.JPG
 
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Shows a diode in line. Cant seem to locate. Any ideas where its located? Have the wiring diagrams but thanks for posting.
 
I don't see doide, just a male and female connector set. Probably Bullet sytle.
 
You are correct, no diode. Checked coil kill circuit, seems to be functioning properly. This one is a stumper !
 
Back to the FD791D. Replaced coils , { thanks for the info} engine now starts but runs rough. Disco the . Vacuum Pressure Sensor, engine runs much better, replaced pressure switch and vacuum tube, same problem. Any ideas!!
 
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