i just got done breaking in my 1994 evinrude 3.0 liter and i broke it in perfect double oil the whole 9 yards when i go down the lake at full throttle the motor will bog down for a while so i keep the throttle the same and every once in a while the rpms will come back and i start going faster for a couple of miles iam not overriven it so its not my rev limiter its not my fuel filter i just replaced it i had boysen reeds put in it and i dont know why it wont run like it am also using ngk plugs the same ones that got installed at the time it was rebuilt woula fouled plug cause that please let me know if any of you ever had this happen to you?????? 