hello can any one help me ive got a 2006 txt 250 pro it developed a rattle whiche what i thaught was little end bearing but when i stripped the engine i found out that the barrel was worn by the exhaust port near the bottom of the stroke what can be done to rectifie this as i dont want to change the little end only to find it hasnt solved the rattle but i dont want to spend loads as im selling the bike can anyone help thanks everyone for taking the time to read this