I have cleaned the carburetor, replaced ignition coil, replaced spark plug, drained fuel and put in fresh, installed new intake manifold, installed fuel filter, cleaned tank, changed and oiled air filter, changed battery, adjusted air/fuel ratios and more I'm sure I'm forgetting. But my 1994 DR350 continues to idle extremely rough and most of the time it will only stay running if in full choke. I could keep buying kits and parts but I'm very interested in simply replacing the carb completely as it seems someone has messed with it before. The ones online are insanely expensive, so if someone could offer a decent price for one I would be very grateful. The bike ran perfect when I bought it and I rode it extensively, this issue happened two days after I sold it to my brother, OF COURSE!!! So now I feel guilty and have been working at it for days and nothing is making the slightest difference. Please help, riding season is just starting in my area and I don't want my brother to miss out.