hey i have a 03 cr 85 big wheel, wondering if u guys can help me out, i just put a fresh top end on it and it bogs, i dont know if it bogged before the top end went i got it blown, bogs in low rpm, carb is clean, right gas mixture, and reeds are good. when it his powerband it takes off. it will sometimes foul a plug and will not run again unless i put a new one in..any ideas? thanks.