I need help knowing which Carb replacement I should order... I only have a partial serial#.. this is a old weedeater that has run like a champ until this year... I know its an 18cc type 1 with a Walbro Carb on it&the partial serial # I have is only the beginning 95242N the rest of that sticker has worn off.. or is there a model# on the carb itself that I am missing?