My honda pc50 just started to over flow. I don't know what to do. The overflow drain has been plugged so it overflows threw the top and soaks my airfilter and get everywhere with a high potential for a bad fire. I don't know what to do. I've taken it al apart. It might be clogged I just replaced the gas tank and it is missing the gas filter?!?! Obvious answer? But how do I clean it.