I would be more suspect of the oil pressure activated sediment bowl assembly for the gas in the crank case. It's designed so that if the engine looses oil pressure, it shuts the gas supply off automatically. Problem is that sometimes the diaphragms in the assembly get bad and allow the gas to follow the oil pressure line back to the crank case. I've had that happen more than once on a 60 and 630. Just have to either plug the oil line and replace with a manual sediment bowl, or get the sediment bowl rebuild kit. I've done it both ways.
My 630 does the same thing
I would be more suspect of the oil pressure activated sediment bowl assembly for the gas in the crank case.
It's designed so that if the engine looses oil pressure, it shuts the gas supply off automatically. Problem is that sometimes the diaphragms in the assembly get bad and allow the gas to follow the oil pressure line back to the crank case. I've had that happen more than once on a 60 and 630.
Just have to either plug the oil line and replace with a manual sediment bowl, or get the sediment bowl rebuild kit. I've done it both ways.
I rebuild all my auto shut offs and Iv had no issues after I rebuild them 😊
I had that problem years ago put a mural cut off on it cut off every time I stop. I pull the plugs out and spend it over
good idea, check out the part 2 video to see what I did! I rebuilt the factory fuel shut off valve.
If you're going to make a video Make it interesting.
No promises