Model: 13AS699H088
Engine: 331777-1107-B1 Code 080320ZD
Not the first time I've posted on this machine but first time for this problem. I've acquired this machine as my own now. Starts quickly and runs smooth and strong. It came to me after the owner got a new one. Leaked gas into the crank over the winter but never ran like that. I did a carb cleaning and replaced the suspect components. New fuel lines, fuel filter, other filters and oil change. Runs great except occasionally, it won't start. Just cranks and cranks. It can be running great all day and then just won't start. Or, it may not start the first time using it for the day. I estimate it's about 10% of the time. During one of these episodes, I've checked spark and it appears good. Plug is always bone dry though. It will start with a shot of carb cleaner into the airbox. So I know I have a fuel issue but can't figure it out. Like I said, I've replaced all of the components in the fuel system leading up to the carb and when it runs, it runs awesome. I'm at a loss.
I use this as a tractor to tow my trailer so it doesn't run for hours. It runs for about 15 minutes and then sits for about 20. Most of the time, I have no problem but like I said, occasionally, it busts my chops.
Thanks