i dont know what i need to rebuild the top end it smells like its burning oil ans smoke leakes out the head feels like it has no power its a 125m atc 1985
You may get more replies by posting this in trikesylvania. But if you're going to re do your top end, I would suggest new valves/valve seals, rings, top end gasket kit, lap your valves and hone your cylinder walls. Check your ring gap too, you may need an oversized piston depending on how worn your cylinder is.