I have a Craftsman 6.5hp briggs engine that is only 4 yrs old. My friend uses it till the bagger is full then shuts it off to empty the bag. He cannot get it started again. Sears told him that it was vapor locked. After it sits a good while it'll start again. I checked it out and believe that it's getting the gas just no spark. The armiture/ignition coil reads short to the mower ground no matter what position the bail/kill switch is in. After sitting all night I'm gonna go back out this afternoon and read the resistance of the coil again. If it's cleared I know the module is bad. I haven't tried the vent on the gas cap yet but that's next. Does anyone know what the value in ohms should be of a good armiture vs a bad one and am I right in thinking that with the bail closed it shouldn't read to ground and when the bail is open it should be a short to ground? Also has anyone else experienced a "hot start" problem before??????