Greetings, We have a Z60 dual fuel LGR-425 that will crank and not start. Last week it came back and was put in its spot. I needed to move it and it cranked fine but no start. I have a sweet buzz from my fuel pump and no spark with my tester. I pulled flash codes and got a 1-2-3 for as long as I hold down the switch. This leads me to believe I do not have a code. A mechanic here told me he tested the unit and found no spark using a plug wire and a screw stick to ground. I found a Ford relay layout on line but is nothing like what I have. The one I found has the DSG-423 & the MSG-423 and I have the LGR-423. I pulled the plug on the crank sensor and have nothing in terms of voltage on the harness side but I was thinking the signal comes from the sensor and a fault in CPS should offer up a code. I started to pull my hair out but I only have a few left so I started a new thread.
Went with a crank position sensor and I am not surprised that I still lack spark.
What's the serial on the machine? Genie has all of their service manuals for that machine online: 30105 for before 1090 52856 for 1090-4000 75861 for after 4000 Should have all the wiring diagrams and diagnostics. They probably have the engine specific manual available (listed in the service manual) online as well.
55002 so I am using the 75861 but it appears to be not matching what I am seeing.
Got home and with a search, found that Winco Generators has the LRG-425 Service manual free for download. Hope that helps https://www.wincogen.com/wp-content/uploads/PD/Engines/ford_lrg-425_shop_manual.pdf
Thanks we put power to the ign module and it fires.