Kawasaki FD791D Issues .

StarTech

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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.
 

cableguy52

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Thanks for the info. Is it using both coils or just one.
 

StarTech

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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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cableguy52

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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.
 

StarTech

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I don't see doide, just a male and female connector set. Probably Bullet sytle.
 

cableguy52

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You are correct, no diode. Checked coil kill circuit, seems to be functioning properly. This one is a stumper !
 

jeff Fleming

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Did you ever fig out what was wrong? I have the same motor with the same problem
 

cableguy52

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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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