I have a 97 AC 600 EFI Snow Special. The other day, my son was riding across the field and it died. I have spark. I have compression. I have dripped a little gas in the spark plug holes and tried to start. Nothing. Doesn't even try to start. I sprayed a little ether in the air intake, nothing. I tried new plugs also. It doesn't even begin to start. Is there a case where I can have spark but it isn't strong enough to run? I have the oil tank filled and checked the air intake for snow or blockage.