well guys the dream came true and i got a 125. amazingly fast. but ive had it for a few days and i dont know much about it and i have some questions. 1) will riding in midrange help foul my plug? 2) how can i tell when my plug is dying and when its fouled ( besides it wont crank) 3) should i run 50/50, water or pure antifreeze? 4)how do i raise the idol speed? my yz wont idol at all 5)how often do i need to replace the rings and top end if im going to do NO racing, casual motocross track, harescrambling, and gncc stuff?