I have a 2006 26HP EFI Walker that keep shutting down when it gets hot. It acts like it runs out of fuel and then it won't start. You let it sit for a while and then it will start and run again. Then it will get hot and shut down again. If it is not really hot outside it runs fine. Last night I washed the mower because we can not find anything else wrong with it and thought maybe dirt and grass was holding more heat. Now it is just runing like crap when ever you put a load on the motor but it is not shutting off completely. Has anyone else had a problem like this? Please help.