Hello Ken, The Kit Was Purched From Mac,s, The Carb Was Soaked And Blown Out Very Clean, Yes I Agree Pretty Straight Foward, I Just Can,t Figure It Out.The Needle And Seat Are One Piece Enclosed, I Started Changing Power Valve, Needle And Seat With Other Parts That I Know Work Well In Another Carb. With No Luck And Very Little Change, Also Is There Supposed To Be A Brass Needle In The Squirt Channel ? Thank You ,Wayne