Purchased an 08 Gtx with 2200 miles from Utah. I ride in Northern Wisconsin so I re-jetted the carbs and raised the clip. Put on about 400 miles and noticed an engine noise. Pulled it apart and I melted the Mag side piston skirt. Dome was ok and no aluminum on plug. Lower ring was cracked but I assume it was from meltdown. Also noticed needle bearings laying in the belly pan(old crusty needles) which tells me this thing was apart before. Any ideas or advice before I start the rebuild? I don't want to be doing this every year.