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Is this on a genset? If so, what is the complete model number?
That is almost almost always a problem with the ignition/control board. It is a very common problem. I would use an after market board made by Dinosaur Electronics as they are more reliable than the OEM boards and have an outstanding warranty. Or you might try Flight Systems as they make good quality boards and controllers for these as well. Hope that proves helpful here. Please get back to me if you feel the need for more discussion relating to this issue as all follow ups are included in our fee.
Did you check the oil level? If it is good, then check the oil pressure switch. It that is bad it won't run either.
Just checking back in to see if you were able to resolve this or do we need to dig deeper?