hey guys, jsut pcikedup a 05 gtx sc. replace wear ring and impeller, thing runs perfect! has for good 20 hours now. noticed when i started it for a second out of water tonight it reallyl rattles.....is this normal on a 4 stroke? also did some 05 keys have a problem ive heard so? this one has started to one long beep wont start till it two beeps bout 5 seconds later