Okay, I bought two 08 klx 110's from a cycle shop back in may. One i built the engine and the other is a stocker, Well the stocker lost power, started smoking and has oil coming out the exhaust. The stocker hasn't be rode that hard, just rode a lot of wheelies on it. But when i bought the bikes, i tore one down to build the engine to put my big bore kit on and when i drained the oil, i drained it in paint mixing cups. The engine had double the recommended oil capacity in it. I called the cycle shop the same day and asked why the bike would have that much oil in it, i really got no answer, they asked why i was changing the oil so soon, but I checked the oil in the stocker and it was the same way so i did an oil change in it also. But has anyone ran into this problem or know whats wrong with my stocker, But also i rebuilt the engine, new head gasket, base gasket and used the other stock head, the piston and rings looked fine, but i guess its gotta be the piston rings ,b/c its still smoking and blowing oil out the pipe.