Can anybody offer any help? I have a lazer z with a 25 hp kohler that's cranking over but just doesn't want to start. It ran fine when I parked it and has sat for about 2 weeks without being started. I checked and both plugs are getting spark. I pulled the gas line off the fuel pump and it pulses gas when cranking. I even gave it a shot of either and it just gave me a loud bang, like a backfire. I've killed the battery and put a jumper pack on and all I seem to be doing is overheating the starter. Any suggestions would be greatly appreciated as I have to get the mower moved and into storage for the winter.