SORRY TO HIJACK THE THREAD. Having the same issue but let the tank run very low, then put some fuel in and still doing the same thing i changed my bat coz it was dead after 5yrs of use, i can here like humming noise when i turn it to ignition. what do you guys mean by priming? i have bought new plugs but have not put them in yet..

Could it be the main relay???

What else could be the issue??