Yep, its me again... I have replaced the needle and seat in my 4.5 ted williams, its a 642-15b engine tecumseh. I got the parts from a none to confident napa sales men, the napa part number was 7-02308, which was an update for napa part number 631021. The seat was white or cream colored which was what I read it was supposed to be. The seat I replaced was black in color. .... After the replacement... I still have fuel running out the air inlet. I have read many posts and have a pdf copy of the repair manual for this unit. I made sure the float is good, adjusted properly. So, I'm wondering if there's a chance I have the wrong needle and seat. Also the needle I'm replacing is square shaped with a pointed tip, the replacement needle is more triangular shaped with a rounded tip... If I wasn't crazed, i'd have taken this to some one else to fix by now 
Thanks for your thoughts and suggestions!
Thanks for your thoughts and suggestions!