Briggs & Stratton 18HP OHV V Twin Just stopped.

I have a GSM Wood Chipper fitted with a Briggs & Stratton 18HP OHV V Twin engine. It was running fine & chipping wood fine. It suddenly stopped & will not fire or start. There is no sign of it trying to catch.
What should be my troubleshooting sequence? Any help would be much appreciated. Thanks, Terry

Hi, yes it spins just fine (it has an electric start), so turns over fast. Terry

Hi, I have pulled bith spark plugs & they are wet with fuel, so it looks as though its not a fuel issue. I grounded both spark plugs against the crankcase & neither produced a spark, so it appears the problem is electrical. I cannot see any obvious signs of wires coming loose. Is there a way of bypassing any potential shorts/kill wires? Many thanks, Terry

Many thanks, great help. Terry

I took off the kill wire & eureka, got a spark. So it would appear that the kill wire is shorting to ground somewhere. I will do some further investigating, but at least I know the coils are ok and producing a spark. Thanks for your help. Terry

Many thanks. Regards, Terry