2005 YAMAHA WARRIOR — ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

1-MY 2005 YAMAHA 1700 ROADSTAR SILVERADO HAS BEEN SPUTTERING AND HEAVY BACKFIRING COMING OUT OF THE EXHAUST INCLUDING FLAMES, 2-THE BIKE HAS BEEN DYING AT RED LIGHTS AND AT LOW ENGINE REVOLUTIONS, I WAS TOLD BY MY DEALER THAT YAMAHA RECOGNIZES THEY HAVE TO SHORT OF DIPSTICKS IN THE OIL TANK AND THEREFORE FILLING THE ENGINES WITH TO MUCH OIL AND THE OIL IS MAKING THE VALVES STICK PLUS THEY ARE INSTALLING TOO WEAK OF VALVE SPRINGS, 3-CHANGE VALVE SPRINGS AND INSTALL NEW DIPSTICK TO LOWER OIL LEVEL IN TANK + RUN 1 RANGE HOTTER SPARK PLUGS. *JB