I just purchased on Feb 2, 2006 a Suzuki Quad Sport z50 4 stroke for my daughter. When she rides the bike and presses on the throttle it sounds like she has a fuel problem (the bike cut out in puddles). I brought the bike into the dealer and they say the bike is fine that once the restrictor plate is removed it should run better. Is anyone familiar with this Quad 50? Where is the restrictor plate?