Alright. today my 450 was running fine but i started to notice 4th seemed to be kinda bogging down. By the time I got her slowed down it bogged down completely and died.Wouldn't restart but compression was fine,had fuel ect. Got a ride back to truck and put in my old sparkplug and it started and made it back to truck.Now that i'm home i tried to start it and it pops but won't start. Seems to have fouled this plug on just the trip back to the truck.Before i tear apart the carb just wondered if anyone else has had this happen to them maybe of has an idea of what the heck happened.